The economy of Sierra Leone is that of a least developed country[18] with a GDP of approximately 1.9 billion USD in 2009.[19] Since the end of the civil war in 2002 the economy is gradually recovering with a GDP growth rate between 4 and 7%;[19] in 2008 its GDP in PPP ranked between 147th (World Bank) and 153rd (CIA) largest in the world.[20]

Sierra Leone's economic development has always been hampered by an overdependence on mineral exploitation. Successive governments and the population as a whole have always believed that "diamonds and gold" are sufficient generators of foreign currency earnings and lure for investment.

As a result, large scale agriculture of commodity products, industrial development and sustainable investments have been neglected by governments, the economy could thus be described as one which is "exploitative" - a rentier state - and based upon the extraction of unsustainable resources or non-reusable assets.

This is a chart of trend of gross domestic product of Sierra Leone at market prices estimated by the International Monetary Fund and EconStats[23] with figures in millions of Sierra Leones.

Year

Gross Domestic Product

1965

246

1970

355

1975

572

1980

1,155

1985

4,365

1990

98,386

1995

657,604

2000

1,330,429

Current GDP per capita of Sierra Leone grew 32% in the 1960s, reaching a peak growth of 107% in the 1970s, but this proved unsustainable and it consequently shrank by 52% in the 1980s and a further 10% in the 1990s.

Agriculture is the largest employer with 80 percent of the population working in the sector.[24]Rice is the most important staple crop in Sierra Leone with 85 percent of farmers cultivating rice during the rainy season[25] and an annual consumption of 76 kg per person.[26]

Rich in minerals, Sierra Leone has relied on the mining sector in general, and diamonds in particular, for its economic base. In the 1970s and early 1980s, economic growth rate slowed because of a decline in the mining sector. Financially disadvantageous exchange rates and government budget deficits led to sizable balance-of-payments deficits and inflation.

Certain policy responses to external factors as well as implementations of aid projects and maintenance have led to a general decline in economic activity and a serious degradation of economic infrastructures. Sierra Leone's short-term prospects depend upon continued adherence to International Monetary Fund programs and continued external assistance.

Radio is the most-popular and most-trusted media source in Sierra Leone, with 72% of people in the country listening to the radio daily. Sierra Leone is home to one government-owned national radio station and roughly two dozen private radio stations, as well as one government-owned and one private TV station.

According to the International Labour Organization, approximately 8,000 Sierra Leoneans are employed in the tourism industry, with a growing number of jobs expected to be created in the future. The main entrance point is Freetown International Airport, where transport to and from has been problematic, the main attractions for tourist in Sierra Leone are the beaches, nature reserves and mountains.[27]

Because of widespread poverty, high petroleum prices and a large portion of the population residing in small communities, walking is often the preferred method of transportation in Sierra Leone. There are 11,700 kilometres (7,270 mi) of highway in Sierra Leone, of which 936 km (582 mi) are paved.

There are 800 km (497 mi) of waterways in Sierra Leone, of which 600 km (373 mi) are navigable year-round. Major ports of Sierra Leone include: Bonthe, Freetown and Pepel. Queen Elizabeth II Quay in Freetown represents the country's only deep water port facility capable of berthing large-hulled cargo or military vessels.

There are ten airports in Sierra Leone, of which one - Lungi International Airport in Freetown - has a paved runway in excess of 3000m in length. Of the remaining airports, all of which having unpaved runways, seven have runways of lengths between 914 and 1,523 m (2,999 and 4,997 ft); the remaining two having runways of shorter length. There are two heliports in the country.[where?]

Mineral exports remain Sierra Leone's principal foreign exchange earner. Sierra Leone is a major producer of gem-quality diamonds. Though rich in this resource, the country has historically struggled to manage its exploitation and export. Annual production estimates range between $70–$250 million; however, only a fraction of that passes through formal export channels (1999: $1.2 million; 2000: $16 million; 2001: projections $25 million). The balance is smuggled out and has been used to finance rebel activities in the region, money laundering, arms purchases, and financing of other illicit activities, leading some to characterize Sierra Leone's diamonds as a "conflict resource."

Recent efforts on the part of the country to improve the management of the export trade have met with some success; in October 2000, a new UN-approved export certification system for exporting diamonds from Sierra Leone was put into place that led to a dramatic increase in legal exports. In 2001, the Government of Sierra Leone created a mining community development fund, which returns a portion of diamond export taxes to diamond mining communities, the fund was created to raise local communities' stake in the legal diamond trade.

Sierra Leone has one of the world's largest deposits of rutile, a titanium ore used as paint pigment and welding rod coatings. Sierra Rutile Limited, fully owned by Nord Resources of the United States, began commercial mining operations near Bonthe in early 1979. Sierra Rutile was then the largest non-petroleum U.S. investment in West Africa. The export of 88,000 tons realized $75 million for the country in 1990.

The company and the Government of Sierra Leone concluded a new agreement on the terms of the company's concession in Sierra Leone in 1990. Rutile and bauxite mining operations were suspended when rebels invaded the mining sites in 1995. Negotiations for reactivation of rutile and bauxite mining are in progress, the U.S. interest in the company has been reduced to 25%.

Since independence, the Government of Sierra Leone has encouraged foreign investment, although the business climate suffers from uncertainty and a shortage of foreign exchange because of civil conflicts. Investors are protected by an agreement that allows for arbitration under the 1965 World Bank Convention. Legislation provides for transfer of interest, dividends, and capital.

The currency is the leone, the central bank of the country is the Bank of Sierra Leone which is in the capital, Freetown. The country operates a floating exchange rate system, and foreign currencies can be exchanged at any of the commercial banks, recognized foreign exchange bureaux and most hotels. Credit card use is limited in Sierra Leone, though they may be used at some hotels and restaurants. There are a few internationally linked automated teller machines that accept Visa cards in Freetown operated by ProCredit Bank.

The MRU has so far been inactive because of domestic problems and internal and cross-border conflicts in all three countries, the future of the MRU depends on the ability of its members to deal with the fallout from these internal and regional problems.

1.
Kono District
–
Kono District is a diamond-rich district in the Eastern Province of Sierra Leone. Its capital and largest city is Koidu Town, the other major towns in the district include Motema, Yengema, Tombodu, Jaiama Nimikor and Sewafe. The district is the largest diamond producer in Sierra Leone, the population of Kono District is 505,767. Before the civil war, Kono District had a well over 600,000, however, it experienced devastation during the Sierra Leone Civil War. The district was heavily looted and constantly fought over due to the rich reserves in the area. Kono District is governed with a District council form of government, which is headed by a District Council Chairman, the District Council Chairman is elected directly by the residents of Kono District in every four years. The Kono District Council Hall located in the district capital Koidu Town, is the official Hall where members of the Kono District Council meet. The current chairman of Kono district council is Richard Abdulrahman Koninga of the who was sworn-in on January 26,2012 after winning the Kono District Local Council Elections, Richard Abdulrahman Koninga inauguration at the Kenema City Hall in Kenema Town was attended by president Ernest Bai Koroma. He succeeded Finda Diana Konomanyi of the All Peoples Congress whose tenure of office expired in 2012, the city of Koidu Town is a municipality and has its own city council, led by Maypr Saa Emerson Lamina. Each one of the fourteen chiefdoms in Kono District is led by a paramount chief, paramount Chiefs hold significant powers and are highly respected across Sierra Leone. Kono District is similar to swing states in American politics, as the District is not considered a stronghold of any political parties in Sierra Leone. The Kono District representatives in the Parliament of Sierra Leone is about equal between SLPP and APC members, Kono District is a major campaign stops in Sierra Leone Presidential election. The District has recently lean towards the APC in municipal and local elections held in 2008 and 2011, the SLPP previously controlled the Kono District Council local government and the Koidu city council, until 2008 when the APC took control. The SLPP has won Kono District in the last three Sierra Leone Presidential elections held in 1996,2002 and 2007, ahmad Tejan Kabbah of the SLPP won the District both in the 1996 and 2002 Sierra Leone Presidential elections. Kono District is the largest diamond producer in Sierra Leone, other important economic activities include gold mining and agricultural production of rice, coffee and cacao. Kono is home to Sierra Leonean Premier League club the Diamond Stars of Kono, the club is one of the oldest, biggest, and most popular football clubs in Sierra Leone. The club have won the Sierra Leonean FA Cup once, in 1992, famous local football clubs are Flamingo FC, Rangers FC, Cosmos FC & Farmers FC. The district is made up of fourteen chiefdoms as the level of administrative subdivision

2.
Sierra Leonean leone
–
The leone is the currency of Sierra Leone. It is subdivided into 100 cents, the ISO4217 code is SLL and the leone is abbreviated as Le placed before the amount. The leone was introduced on 4 August 1964 and it replaced the British West African pound at a rate of 1 pound =2 leones. For an earlier Sierra Leone currency, see Sierra Leonean dollar, in 1964, decimal coins were introduced in denominations of ½,1,5,10 and 20 cents. The coins size and compositions were based in part on those of the colonial state British West Africa. All bore the portrait of the first president of Sierra Leone, in 1972,50 cents coins were introduced which carried the portrait of the succeeding president Dr. Siaka Stevens. In 1974, round cupro-nickel one leone coins were introduced and in 1976 and these latter two denominations, however, did not circulate as frequently as the lower cent denominations. The portrait of Stevens also appeared on a new, slightly smaller series of coins introduced in 1980 in denominations of ½,1,5,10 and 20 cents. In 1987, octagonal, nickel-bronze 1 leone coins were introduced with a bust portrait of General Joseph Saidu Momoh and this coin effectively replaced the one leone note. Following a period of collapse and the following Sierra Leone Civil War inflation became rampant. A new coin series was introduced in 1996 for 10,50 and 100 leones, the 50 leones is octagonal while the other two are round. These coins were struck in nickel-plated steel and feature important figures in Sierra Leones political history, ten sided, bimetallic 500 leones coins were first introduced in 2004. Of the four coins in circulation, only the 100 leones is available in small quantity due to their low valuation,500 leones coins and the two lowest denominations are rarely encountered due to rampant metal theft in the impoverished country. With the introduction of currency in 1964, a new series of Banknotes was introduced by the Bank of Sierra Leone. Originally called Shillings, the unit name Leone was finally decided upon, after considering several new designs, including a particularly attractive multi-coloured design, notes were issued in the 1,2 and 5 Leone denominations. These officially replaced notes of the British West African pound at a two leone to one pound exchange ratio,50 cents notes were introduced in 1979, followed by 10 leones in 1980 and 20 leones notes in 1982. Throughout this period the value of the currency was fixed and remained stable despite inherent economic problems. 100 leones notes were introduced in 1988, followed by 500 leones in 1991,1000 and 5000 leones in 1993,2000 leones in the year 2000 and 10,000 Leone in 2004

3.
Fiscal year
–
A fiscal year is the period used by governments for accounting and budget purposes, which vary between countries. It is also used for reporting by business and other organizations. Taxation laws generally require accounting records to be maintained and taxes calculated on an annual basis, the calculation of tax on an annual basis is especially relevant for direct taxation, such as income tax. Many annual government fees—such as Council rates, licence fees, etc. —are also levied on a year basis. The fiscal year end is the date marks the end of the fiscal year. Some companies—such as Cisco Systems—end their fiscal year on the day of the week each year. Under such a system, some years will have 52 weeks. Many universities have a year which ends during the summer. In the northern hemisphere this is July to the next June, in the southern hemisphere this is calendar year, January to December. Some media/communication-based organizations use a broadcast calendar as the basis for their fiscal year, the American football league NFL uses the term league year, which in effect forms the leagues fiscal year. In Afghanistan, the year was recently changed from 1 Hamal –29 Hoot to 1 Jadi –30 Qaus. The fiscal year runs with the Afghan calendar, thus resulting in difference of the Gregorian dates once in a four-year span, in Australia, a fiscal year is commonly called a financial year and starts on 1 July and ends on the next 30 June. Financial years are designated by the year of the second half of the period. For example, financial year 2017 is the 12-month period ending on 30 June 2017 and it is used for official purposes, by individual taxpayers and by the overwhelming majority of business enterprises. Business enterprises may opt to use a year that ends at the end of a week. All entities within the one group must use the financial year. The Commonwealth adopted the near-ubiquitous financial year standard since its inception in 1901, the reason given for the change was for convenience, as Parliament typically sits during May and June, while it was difficult for it to meet in November and December to pass a budget. In Austria the fiscal year is the year,1 January to 31 December

4.
African Union
–
The African Union is a continental union consisting of all 55 countries on the African continent. It was established on 26 May 2001 in Addis Ababa, Ethiopia, the most important decisions of the AU are made by the Assembly of the African Union, a semi-annual meeting of the heads of state and government of its member states. The AUs secretariat, the African Union Commission, is based in Addis Ababa, the objectives of the AU are, To achieve greater unity and solidarity between the African countries and Africans. To defend the sovereignty, territorial integrity and independence of its Member States, to accelerate the political and social-economic integration of the continent. To promote and defend African common positions on issues of interest to the continent, to encourage international cooperation, taking due account of the Charter of the United Nations and the Universal Declaration of Human Rights. To promote peace, security, and stability on the continent, to promote democratic principles and institutions, popular participation and good governance. To promote and protect human and peoples rights in accordance with the African Charter on Human and Peoples Rights, to establish the necessary conditions which enable the continent to play its rightful role in the global economy and in international negotiations. To promote sustainable development at the economic, social and cultural levels as well as the integration of African economies, to promote co-operation in all fields of human activity to raise the living standards of African peoples. To coordinate and harmonize the policies between the existing and future Regional Economic Communities for the attainment of the objectives of the Union. To advance the development of the continent by promoting research in all fields, in particular in science, to work with relevant international partners in the eradication of preventable diseases and the promotion of good health on the continent. The African Union is made up of political and administrative bodies. The highest decision-making organ is the Assembly of the African Union, the Assembly is chaired by Idriss Déby, President of Chad. The AU also has a body, the Pan African Parliament. Its president is Bethel Nnaemeka Amadi, the AU Commission, the secretariat to the political structures, is chaired by Nkosazana Dlamini-Zuma of South Africa. On 15 July 2012, Ms. Dlamini-Zuma won a contested vote to become the first female head of the African Union Commission. The main administrative capital of the African Union is in Addis Ababa, Ethiopia, a new headquarters complex, the AU Conference Center and Office Complex, was inaugurated on 28 January 2012, during the 18th AU summit. The tower is 99.9 meters high to signify the date 9 September 1999, the AU covers the entire continent except for several territories held by Spain, France, Portugal and the United Kingdom. AU troops were deployed in Sudan for peacekeeping during Darfur conflict

5.
African Development Bank
–
The African Development Bank Group is a multilateral development finance institution established to contribute to the economic development and social progress of African countries. The AfDB was founded in 1964 and comprises three entities, The African Development Bank, the African Development Fund and the Nigeria Trust Fund, the AfDB is a financial provider to African governments and private companies investing in the regional member countries. While it was headquartered in Abidjan, Côte dIvoire, the banks headquarters moved to Tunis, Tunisia in 2003, due to the Ivorian civil war. The agreement came into force on 10 September 1964, although established officially in under the auspices of the Economic Commission for Africa, the AfDB began operation in 1966. Although originally only African countries were able to join the bank, during its forty years of operations, AfDB has financed 2,885 operations, for a total of $47.5 billion. In 2003, it received an AAA rating from the financial rating agencies and had a capital of $32.043 billion. The African Development Bank Group has two entities, the African Development Fund and the Nigeria Trust Fund. Established in 1972, the African Development Fund started operations in 1974, in harmony with its lending strategy, poverty reduction is the main aim of ADF activities. Twenty-four non-African countries along with the AfDB constitute its current membership, the Federal Reserve Bank of New York was designated as the depositor bank for the fund according to telegraphs sent from the U. S. Embassy in Abidjan in 1976. The ADF’s sources are mainly contributions and periodic replacements by non-African member states, the fund is usually replenished every three years, unless member states decide otherwise. The total donations, at the end of 1996, amounted to $12.58 billion. The ADF lends at no interest rate, with a service charge of 0. 75%, a commitment fee of 0. 5%. The tenth United Kingdom replenishment of the ADF was in 2006, the Nigeria Trust Fund was established in 1976 by the Nigerian government with an initial capital of $80 million. The NTF is aimed at assisting in the development efforts of the poorest AfDB members, in 1996, the NTF had a total resource base of $432 million. It lends at a 4% interest rate with a 25-year repayment period, the AfDB is controlled by a Board of Executive Directors, made up of representatives of its member countries. The voting power on the Board is split according to the size of each members share, the largest African Development Bank shareholder is Nigeria with nearly 9 percent of the vote. All member countries of the AfDB are represented on the AfDB Board of Executive Directors, dr. Akinwumi Ayodeji Adesina is the 8th elected President of the African Development Bank Group], having taken the oath of office on September 1,2015. He chairs the Boards of both the African Development Bank and the African Development Fund, dr. Adesina served as Nigeria’s Minister of Agriculture and Rural Development from 2011 to 2015

6.
Economic Community of West African States
–
The Economic Community of West African States, also known as ECOWAS, is a regional economic union of fifteen countries located in West Africa. Collectively, these comprise an area of 5,114,162 km2. The union was established on 28 May 1975, with the signing of the Treaty of Lagos, a revised version of the treaty was agreed and signed on 24 July 1993 in Cotonou. In recent years these included interventions in Ivory Coast in 2003, Liberia in 2003, Guinea-Bissau in 2012, Mali in 2013, established in 1994 and intended to counterbalance the dominance of English-speaking economies in the bloc, members of UEMOA are mostly former territories of French West Africa. The currency they all use is the CFA franc, which is pegged to the euro, the West African Monetary Zone, established in 2000, comprises six mainly English-speaking countries within ECOWAS which plan to work towards adopting their own common currency, the eco. A few members of the organization have come and gone over the years, in 1976 Cape Verde joined ECOWAS, and in December 2000 Mauritania withdrew, having announced its intention to do so in December 1999. In 2011, ECOWAS adopted its development blueprint for the decade, Vision 2020, and, to accompany it. As of February 2017 ECOWAS has 15 member states, eight of these are French-speaking, five are English-speaking, all current members joined the community as founding members in May 1975, except Cape Verde which joined in 1977. Statistics for population, nominal GDP and purchase price parity GDP listed below are taken from World Bank estimates for 2015, area data is taken from a 2012 report compiled by the United Nations Statistics Division. The ECOWAS nations assigned a non-aggression protocol in 1990 along with two earlier agreements in 1978 and 1981. They also signed a Protocol on Mutual Defence Assistance in Freetown, Sierra Leone, on 29 May 1981, the Community Parliament consists of 115 members, distributed based on the population of each member state. This body is headed by the Speaker of the Parliament, who is above the Secretary General, for the third time since its inception in 1975, ECOWAS is undergoing institutional reforms. The first was when it revised its treaty on 24 July 1993, however, the Court did not officially begin operations until the 1991 protocol came into effect on 5 November 1996. The jurisdiction of the court is outlined in Article 9 and Articles 76 of the Revised Treaty and it also provides the ECOWAS Council with advisory opinions on legal issues. Like its companion courts the European Court of Human Rights and East African Court of Justice, it has jurisdiction to rule on fundamental human rights breaches. ECOWAS nations organize an array of cultural and sports event under the auspices of the body, including the CEDEAO Cup in football, the 2012 ECOWAS Games. It was established to promote economic integration among countries that share the CFA franc as a common currency. UEMOA was created by a Treaty signed at Dakar, Senegal, on 10 January 1994, by the heads of state and governments of Benin, Burkina Faso, Côte dIvoire, Mali, Niger, Senegal, and Togo

7.
Mano River Union
–
The Mano River Union is an international association initially established between Liberia and Sierra Leone by the 3 October 1971 Mano River Declaration. It is named for the Mano River which begins in the Guinea highlands, on 25 October 1980, Guinea joined the union. The goal of the Union was to accelerate the growth, social progress. By active collaboration and mutual assistance in matters of common interest in economic, social, technical, scientific, however, due to internal conflicts within the two original MRU countries, these objectives could not be achieved. The staff numbered 600 in 1986, but was down to 300 in 1993, then to 120, on 15 May 2008, Cote dIvoire agreed to join the union. The MRU is run by a secretariat, headed by a Secretary-General, when Secretary-General Habib Diallo was killed in a car crash in 2011, his successor was the first woman to hold that office, Dr Saran Daraba Kaba. The Mano River Union Secretariat is based in Freetown, Sierra Leone, with offices in Conakry, Guinea and Monrovia, Liberia. Cyril Bright, Liberia Ernest Eastman, Liberia Augustus F. Caine, Liberia Dr Abdoulaye Diallo, Guinea Abraham Boure, Guinea Habib Diallo, Guinea Dr Saran Daraba Kaba, Guinea

8.
World Bank
–
The World Bank is an international financial institution that provides loans to countries of the world for capital programs. It comprises two institutions, the International Bank for Reconstruction and Development, and the International Development Association, the World Bank is a component of the World Bank Group, which is part of the United Nations system. The World Banks stated official goal is the reduction of poverty, the president of the World Bank is, traditionally, an American. The World Bank and the IMF are both based in Washington, D. C. and work closely with each other, although many countries were represented at the Bretton Woods Conference, the United States and United Kingdom were the most powerful in attendance and dominated the negotiations. Before 1974 the reconstruction and development loans provided by the World Bank were relatively small, the Banks staff were aware of the need to instill confidence in the bank. Fiscal conservatism ruled, and loan applications had to meet strict criteria, the first country to receive a World Bank loan was France. The Banks president at the time, John McCloy, chose France over two other applicants, Poland and Chile, the loan was for US$250 million, half the amount requested, and it came with strict conditions. France had to agree to produce a budget and give priority of debt repayment to the World Bank over other governments. World Bank staff closely monitored the use of the funds to ensure that the French government met the conditions. In addition, before the loan was approved, the United States State Department told the French government that its members associated with the Communist Party would first have to be removed, the French government complied with this diktat and removed the Communist coalition government - the so-called tripartisme. Within hours, the loan to France was approved, when the Marshall Plan went into effect in 1947, many European countries began receiving aid from other sources. Faced with this competition, the World Bank shifted its focus to non-European countries, in 1960, the International Development Association was formed, providing soft loans to developing countries. From 1974 to 1980 the bank concentrated on meeting the needs of people in the developing world. The size and number of loans to borrowers was greatly increased as loan targets expanded from infrastructure into social services and these changes can be attributed to Robert McNamara, who was appointed to the presidency in 1968 by Lyndon B. Johnson. McNamara implored bank treasurer Eugene Rotberg to seek out new sources of capital outside of the banks that had been the primary sources of funding. Rotberg used the bond market to increase the capital available to the bank. One consequence of the period of poverty alleviation lending was the rise of third world debt. From 1976 to 1980 developing world debt rose at an annual rate of 20%

9.
International Monetary Fund
–
The International Monetary Fund is an international organization headquartered in Washington, D. C. It now plays a role in the management of balance of payments difficulties. Countries contribute funds to a pool through a system from which countries experiencing balance of payments problems can borrow money. As of 2016, the fund had SDR477 billion, the rationale for this is that private international capital markets function imperfectly and many countries have limited access to financial markets. The IMF provides alternate sources of financing and this assistance was meant to prevent the spread of international economic crises. The IMF was also intended to help mend the pieces of the economy after the Great Depression. As well, to provide investments for economic growth and projects such as infrastructure. The IMFs role was altered by the floating exchange rates post-1971. It shifted to examining the economic policies of countries with IMF loan agreements to determine if a shortage of capital was due to economic fluctuations or economic policy, the IMF also researched what types of government policy would ensure economic recovery. Rather than maintaining a position of oversight of only exchange rates and their role became a lot more active because the IMF now manages economic policy rather than just exchange rates. In addition, the IMF negotiates conditions on lending and loans under their policy of conditionality, nonconcessional loans, which include interest rates, are provided mainly through Stand-By Arrangements, the Flexible Credit Line, the Precautionary and Liquidity Line, and the Extended Fund Facility. The IMF provides emergency assistance via the Rapid Financing Instrument to members facing urgent balance-of-payments needs, the IMF is mandated to oversee the international monetary and financial system and monitor the economic and financial policies of its member countries. This activity is known as surveillance and facilitates international cooperation, the responsibilities changed from those of guardian to those of overseer of members’ policies. In 1995 the International Monetary Fund began work on data dissemination standards with the view of guiding IMF member countries to disseminate their economic and financial data to the public. The executive board approved the SDDS and GDDS in 1996 and 1997 respectively, the system is aimed primarily at statisticians and aims to improve many aspects of statistical systems in a country. It is also part of the World Bank Millennium Development Goals, some countries initially used the GDDS, but later upgraded to SDDS. The IMF does require collateral from countries for loans but also requires the government seeking assistance to correct its macroeconomic imbalances in the form of policy reform, if the conditions are not met, the funds are withheld. The concept of conditionality was introduced in a 1952 Executive Board decision, conditionality is associated with economic theory as well as an enforcement mechanism for repayment

10.
WTO
–
The World Trade Organization is an intergovernmental organization which regulates international trade. The WTO officially commenced on 1 January 1995 under the Marrakesh Agreement, signed by 123 nations on 15 April 1994, replacing the General Agreement on Tariffs and Trade, most of the issues that the WTO focuses on derive from previous trade negotiations, especially from the Uruguay Round. The WTO is attempting to complete negotiations on the Doha Development Round, as of June 2012, the future of the Doha Round remained uncertain, the work programme lists 21 subjects in which the original deadline of 1 January 2005 was missed, and the round is still incomplete. This impasse has made it impossible to launch new WTO negotiations beyond the Doha Development Round, as a result, there have been an increasing number of bilateral free trade agreements between governments. As of July 2012, there were various groups in the WTO system for the current agricultural trade negotiation which is in the condition of stalemate. The WTOs current Director-General is Roberto Azevêdo, who leads a staff of over 600 people in Geneva, a trade facilitation agreement, part of the Bali Package of decisions, was agreed by all members on 7 December 2013, the first comprehensive agreement in the organizations history. Seven rounds of negotiations occurred under GATT, the first real GATT trade rounds concentrated on further reducing tariffs. Then, the Kennedy Round in the mid-sixties brought about a GATT anti-dumping Agreement, because these plurilateral agreements were not accepted by the full GATT membership, they were often informally called codes. Several of these codes were amended in the Uruguay Round, only four remained plurilateral, but in 1997 WTO members agreed to terminate the bovine meat and dairy agreements, leaving only two. Well before GATTs 40th anniversary, its members concluded that the GATT system was straining to adapt to a new globalizing world economy. In response to the problems identified in the 1982 Ministerial Declaration, the GATT still exists as the WTOs umbrella treaty for trade in goods, updated as a result of the Uruguay Round negotiations. GATT1994 is not however the only legally binding agreement included via the Final Act at Marrakesh, the highest decision-making body of the WTO is the Ministerial Conference, which usually meets every two years. It brings together all members of the WTO, all of which are countries or customs unions, the Ministerial Conference can take decisions on all matters under any of the multilateral trade agreements. When agricultural export subsidies were agreed to be phased out and adoption of the European Unions Everything, the WTO launched the current round of negotiations, the Doha Development Round, at the fourth ministerial conference in Doha, Qatar in November 2001. This was to be an effort to make globalization more inclusive and help the worlds poor, particularly by slashing barriers. The initial agenda comprised both further trade liberalization and new rule-making, underpinned by commitments to strengthen substantial assistance to developing countries. Among the various functions of the WTO, these are regarded by analysts as the most important and it provides a forum for negotiations and for settling disputes. Another priority of the WTO is the assistance of developing, least-developed and low-income countries in transition to adjust to WTO rules and disciplines through technical cooperation and training

11.
Group of 77
–
There were 77 founding members of the organization, but by November 2013 the organization had since expanded to 134 member countries. Ecuador holds the Chairmanship for 2017, the group was founded on 15 June 1964, by the Joint Declaration of the Seventy-Seven Countries issued at the United Nations Conference on Trade and Development. The first major meeting was in Algiers in 1967, where the Charter of Algiers was adopted, there are Chapters of the Group of 77 in Geneva, Rome, Vienna, Paris, Nairobi and the Group of 24 in Washington, D. C. The group has been credited with common stance against apartheid and for supporting global disarmament and it has been supportive of the New International Economic Order. On the map, members as of 2013 are shown in green, the years in parenthesis represent the year/s a country has presided. Countries listed in bold are members of the G-24. See the official list of G-77 members, New Zealand signed the original Joint Declaration of the Developing Countries in October 1963, but pulled out of the group before the formation of the G77 in 1964. Mexico was a member, but left the Group after joining the OECD in 1994. It had presided over the group in 1973–1974, 1983–1984, however, south Korea was a founding member, but left the Group after joining the OECD in 1996. Yugoslavia was a member, by the late 1990s it was still listed on the membership list. It was removed from the list in late 2003 and it had presided over the group in 1985–1986. Bosnia and Herzegovina is the part of former Yugoslavia that is currently in G77. Cyprus was a member, but was no longer listed on the official membership list after its accession to the EU in 2004. Malta was admitted to the Group in 1976, but was no longer listed on the membership list after its accession to the EU in 2004. Palau joined the Group in 2002, but withdrew in 2004, romania was admitted to the Group in 1976, but was no longer listed on the official membership list after its accession to the EU in 2007. China has never joined the G77 but provides consistent political support. Its meetings usually take place twice a year, prior to the IMFC and Development Committee meetings, although membership in the G-24 is strictly limited to 24 countries, any member of the G-77 can join discussions. China has been a special invitee since the Gabon meetings of 1981, naglaa El-Ehwany, Minister of International Cooperation, Egypt, is the current chairman of the G-24

12.
Gross domestic product
–
Gross Domestic Product is a monetary measure of the market value of all final goods and services produced in a period. Nominal GDP estimates are used to determine the economic performance of a whole country or region. The OECD defines GDP as a measure of production equal to the sum of the gross values added of all resident and institutional units engaged in production. ”An IMF publication states that GDP measures the monetary value of final goods and services - that is. Total GDP can also be broken down into the contribution of industry or sector of the economy. The ratio of GDP to the population of the region is the per capita GDP. William Petty came up with a concept of GDP to defend landlords against unfair taxation during warfare between the Dutch and the English between 1652 and 1674. Charles Davenant developed the method further in 1695, the modern concept of GDP was first developed by Simon Kuznets for a US Congress report in 1934. In this report, Kuznets warned against its use as a measure of welfare, after the Bretton Woods conference in 1944, GDP became the main tool for measuring a countrys economy. The switch from GNP to GDP in the US was in 1991, the history of the concept of GDP should be distinguished from the history of changes in ways of estimating it. The value added by firms is relatively easy to calculate from their accounts, but the value added by the sector, by financial industries. GDP can be determined in three ways, all of which should, in principle, give the same result and they are the production approach, the income approach, or the expenditure approach. The most direct of the three is the approach, which sums the outputs of every class of enterprise to arrive at the total. The income approach works on the principle that the incomes of the factors must be equal to the value of their product. This approach mirrors the OECD definition given above, deduct intermediate consumption from gross value to obtain the gross value added. Gross value added = gross value of output – value of intermediate consumption, value of output = value of the total sales of goods and services plus value of changes in the inventories. The sum of the value added in the various economic activities is known as GDP at factor cost. GDP at factor cost plus indirect taxes less subsidies on products = GDP at producer price, for measuring output of domestic product, economic activities are classified into various sectors. Subtracting each sectors intermediate consumption from gross output gives the GDP at factor cost, adding indirect tax minus subsidies in GDP at factor cost gives the GDP at producer prices

13.
Purchasing power parity
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Observed deviations of the exchange rate from purchasing power parity are measured by deviations of the real exchange rate from its PPP value of 1. PPP exchange rates help to minimize misleading international comparisons that can arise with the use of exchange rates. For example, suppose that two countries produce the same amounts of goods as each other in each of two different years. But if one countrys GDP is converted into the countrys currency using PPP exchange rates instead of observed market exchange rates. The idea originated with the School of Salamanca in the 16th century, the best-known purchasing power adjustment is the Geary–Khamis dollar. The real exchange rate is equal to the nominal exchange rate. If purchasing power parity held exactly, then the exchange rate would always equal one. However, in practice the exchange rates exhibit both short run and long run deviations from this value, for example due to reasons illuminated in the Balassa–Samuelson theorem. There can be marked differences between purchasing power adjusted incomes and those converted via market exchange rates. This discrepancy has large implications, for instance, when converted via the exchange rates GDP per capita in India is about US$1,965 while on a PPP basis it is about US$7,197. At the other extreme, Denmarks nominal GDP per capita is around US$62,100, the purchasing power parity exchange rate serves two main functions. PPP exchange rates can be useful for making comparisons between countries because they stay fairly constant from day to day or week to week and only change modestly, if at all, from year to year. The PPP exchange-rate calculation is controversial because of the difficulties of finding comparable baskets of goods to compare purchasing power across countries, people in different countries typically consume different baskets of goods. It is necessary to compare the cost of baskets of goods and this is a difficult task because purchasing patterns and even the goods available to purchase differ across countries. Thus, it is necessary to make adjustments for differences in the quality of goods, furthermore, the basket of goods representative of one economy will vary from that of another, Americans eat more bread, Chinese more rice. Hence a PPP calculated using the US consumption as a base will differ from that calculated using China as a base, additional statistical difficulties arise with multilateral comparisons when more than two countries are to be compared. Various ways of averaging bilateral PPPs can provide a stable multilateral comparison. These are all issues of indexing, as with other price indices there is no way to reduce complexity to a single number that is equally satisfying for all purposes

14.
Agriculture
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Agriculture is the cultivation and breeding of animals, plants and fungi for food, fiber, biofuel, medicinal plants and other products used to sustain and enhance human life. Agriculture was the key development in the rise of human civilization. The study of agriculture is known as agricultural science, the history of agriculture dates back thousands of years, and its development has been driven and defined by greatly different climates, cultures, and technologies. Industrial agriculture based on large-scale monoculture farming has become the dominant agricultural methodology, genetically modified organisms are an increasing component of agriculture, although they are banned in several countries. Agricultural food production and water management are increasingly becoming global issues that are fostering debate on a number of fronts, the major agricultural products can be broadly grouped into foods, fibers, fuels, and raw materials. Specific foods include cereals, vegetables, fruits, oils, meats, fibers include cotton, wool, hemp, silk and flax. Raw materials include lumber and bamboo, other useful materials are also produced by plants, such as resins, dyes, drugs, perfumes, biofuels and ornamental products such as cut flowers and nursery plants. The word agriculture is a late Middle English adaptation of Latin agricultūra, from ager, field, Agriculture usually refers to human activities, although it is also observed in certain species of ant, termite and ambrosia beetle. To practice agriculture means to use resources to produce commodities which maintain life, including food, fiber, forest products, horticultural crops. This definition includes arable farming or agronomy, and horticulture, all terms for the growing of plants, even then, it is acknowledged that there is a large amount of knowledge transfer and overlap between silviculture and agriculture. In traditional farming, the two are often combined even on small landholdings, leading to the term agroforestry, Agriculture began independently in different parts of the globe, and included a diverse range of taxa. At least 11 separate regions of the Old and New World were involved as independent centers of origin, wild grains were collected and eaten from at least 105,000 years ago. Pigs were domesticated in Mesopotamia around 15,000 years ago, rice was domesticated in China between 13,500 and 8,200 years ago, followed by mung, soy and azuki beans. Sheep were domesticated in Mesopotamia between 13,000 and 11,000 years ago. From around 11,500 years ago, the eight Neolithic founder crops, emmer and einkorn wheat, hulled barley, peas, lentils, bitter vetch, chick peas and flax were cultivated in the Levant. Cattle were domesticated from the aurochs in the areas of modern Turkey. In the Andes of South America, the potato was domesticated between 10,000 and 7,000 years ago, along with beans, coca, llamas, alpacas, sugarcane and some root vegetables were domesticated in New Guinea around 9,000 years ago. Sorghum was domesticated in the Sahel region of Africa by 7,000 years ago, cotton was domesticated in Peru by 5,600 years ago, and was independently domesticated in Eurasia at an unknown time

15.
Industry
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Industry is the production of goods or related services within an economy. The major source of revenue of a group or company is the indicator of its relevant industry, when a large group has multiple sources of revenue generation, it is considered to be working in different industries. Manufacturing industry became a key sector of production and labour in European and North American countries during the Industrial Revolution, upsetting previous mercantile and this came through many successive rapid advances in technology, such as the production of steel and coal. Following the Industrial Revolution, possibly a third of the economic output are derived that is from manufacturing industries. Many developed countries and many developing/semi-developed countries depend significantly on manufacturing industry, Industries, the countries they reside in, and the economies of those countries are interlinked in a complex web of interdependence. Industries can be classified in a variety of ways, at the top level, industry is often classified according to the three-sector theory into sectors, primary, secondary, and tertiary. Some authors add quaternary or even quinary sectors, over time, the fraction of a societys industry within each sector changes. Below the economic sectors there are other more detailed industry classifications. These classification systems commonly divide industries according to functions and markets. Market-based classification systems such as the Global Industry Classification Standard and the Industry Classification Benchmark are used in finance, the International Standard Industrial Classification of all economic activities is the most complete and systematic industrial classification made by the United Nations Statistics Division. ISIC is a classification of economic activities arranged so that entities can be classified according to the activity they carry out. The Industrial Revolution led to the development of factories for large-scale production, originally the factories were steam-powered, but later transitioned to electricity once an electrical grid was developed. The mechanized assembly line was introduced to parts in a repeatable fashion. This led to significant increases in efficiency, lowering the cost of the end process, later automation was increasingly used to replace human operators. This process has accelerated with the development of the computer and the robot, historically certain manufacturing industries have gone into a decline due to various economic factors, including the development of replacement technology or the loss of competitive advantage. An example of the former is the decline in manufacturing when the automobile was mass-produced. A recent trend has been the migration of prosperous, industrialized nations towards a post-industrial society and this is manifested by an increase in the service sector at the expense of manufacturing, and the development of an information-based economy, the so-called informational revolution. In a post-industrial society, manufacturing is relocated to more favourable locations through a process of off-shoring

16.
Service (economics)
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In economics, a service is a transaction in which no physical goods is transferred from the seller to the buyer. The benefits of such a service are held to be demonstrated by the willingness to make the exchange. Public services are those that society as a whole pays for, using resources, skill, ingenuity, and experience, service providers benefit service consumers. Services can be described in terms of their key characteristics, sometimes called the Five Is of Services and they are not manufactured, transported or stocked. Services cannot be stored for a future use and they are produced and consumed simultaneously. Services are perishable in two regards, Service-relevant resources, processes and systems are assigned for delivery during a specific period in time. If the service consumer does not request and consume the service during this period, from the perspective of the service provider, this is a lost business opportunity if no other use for those resources is available. Examples, A hairdresser serves another client, an empty seat on an airplane cannot be filled after departure. When the service has been rendered to the consumer, this particular service irreversibly vanishes. Example, a passenger has been transported to the destination and the flight is over, the service provider must deliver the service at the time of service consumption. The service is not manifested in an object that is independent of the provider. The service consumer is also inseparable from service delivery, examples, The service consumer must sit in the hairdressers chair, or in the airplane seat. Correspondingly, the hairdresser or the pilot must be in the shop or plane, respectively, many services are regarded as heterogeneous and are typically modified for each service consumer or each service context. Another and more common term for this is heterogeneity, both service provider and service consumer participate in the service provision. Mass generation and delivery of services must be mastered for a provider to expand. This can be seen as a problem of service quality, both inputs and outputs to the processes involved providing services are highly variable, as are the relationships between these processes, making it difficult to maintain consistent service quality. Many services involve variable human activity, rather than a precisely determined process, the human factor is often the key success factor in service provision. Demand can vary by season, time of day, business cycle, consistency is necessary to create enduring business relationships

17.
Inflation
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In economics, inflation is a sustained increase in the general price level of goods and services in an economy over a period of time resulting in a loss of value of currency. When the price rises, each unit of currency buys fewer goods. Consequently, inflation reflects a reduction in the power per unit of money – a loss of real value in the medium of exchange. A chief measure of inflation is the inflation rate, the annualized percentage change in a general price index, usually the consumer price index. The opposite of inflation is deflation, Inflation affects economies in various positive and negative ways. Economists generally believe that high rates of inflation and hyperinflation are caused by a growth of the money supply. However, money supply growth does not necessarily cause inflation, some economists maintain that under the conditions of a liquidity trap, large monetary injections are like pushing on a string. Views on which factors determine low to moderate rates of inflation are more varied, low or moderate inflation may be attributed to fluctuations in real demand for goods and services, or changes in available supplies such as during scarcities. However, the view is that a long sustained period of inflation is caused by money supply growing faster than the rate of economic growth. Today, most economists favor a low and steady rate of inflation, the task of keeping the rate of inflation low and stable is usually given to monetary authorities. Rapid increases in quantity of the money or in the money supply have occurred in many different societies throughout history. By diluting the gold with other metals, the government could issue more coins without also needing to increase the amount of used to make them. When the cost of each coin is lowered in this way and this practice would increase the money supply but at the same time the relative value of each coin would be lowered. As the relative value of the coins becomes lower, consumers would need to give more coins in exchange for the same goods and these goods and services would experience a price increase as the value of each coin is reduced. Song Dynasty China introduced the practice of printing paper money in order to create fiat currency, during the Mongol Yuan Dynasty, the government spent a great deal of money fighting costly wars, and reacted by printing more money, leading to inflation. Fearing the inflation that plagued the Yuan dynasty, the Ming Dynasty initially rejected the use of paper money, historically, large infusions of gold or silver into an economy also led to inflation. This was largely caused by the influx of gold and silver from the New World into Habsburg Spain. The silver spread throughout a previously cash-starved Europe and caused widespread inflation, demographic factors also contributed to upward pressure on prices, with European population growth after depopulation caused by the Black Death pandemic

18.
Poverty threshold
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The poverty threshold, poverty limit or poverty line is the minimum level of income deemed adequate in a particular country. In practice, like the definition of poverty, the official or common understanding of the poverty line is higher in developed countries than in developing countries. In 2008, the World Bank came out with a figure of $1.25 at 2005 purchasing-power parity, the new IPL replaces the $1.25 per day figure, which used 2005 data. Most scholars agree that it better reflects todays reality, particularly new price levels in developing countries, the common international poverty line has in the past been roughly $1 a day. At present the percentage of the population living under extreme poverty is likely to fall below 10% according to the World Bank projections released in 2015. Determining the poverty line is usually done by finding the total cost of all the resources that an average human adult consumes in one year. Individual factors are used to account for various circumstances, such as whether one is a parent, elderly. The poverty threshold may be adjusted annually, charles Booth, a pioneering investigator of poverty in London at the turn of the 20th century, popularised the idea of a poverty line, a concept originally conceived by the London School Board. Booth set the line at 10 to 20 shillings per week, to secure the necessaries of a healthy life, which included fuel and light, rent, food, clothing, and household and personal items. Based on data from leading nutritionists of the period, he calculated the cheapest price for the minimum calorific intake and nutritional balance necessary and he considered this amount to set his poverty line and concluded that 27. 84% of the total population of York lived below this poverty line. Rowntree distinguished between primary poverty, those lacking in income and secondary poverty, those who had enough income, Absolute poverty is the level of poverty as defined in terms of the minimal requirements necessary to afford minimal standards of food, clothing, health care and shelter. For the measure to be absolute, the line must be the same in different countries, cultures, such an absolute measure should look only at the individuals power to consume and it should be independent of any changes in income distribution. Notice that if real income in an economy increases. Measuring poverty by a threshold has the advantage of applying the same standard across different locations and time periods. For example, a living in far northern Scandinavia requires a source of heat during colder months. The term absolute poverty is sometimes used as a synonym for extreme poverty. Absolute poverty is the absence of resources to secure basic life necessities. It depends not only on income but also on access to services, safe drinking water, Water must not come solely from rivers and ponds, and must be available nearby

19.
Gini coefficient
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The Gini coefficient is a measure of statistical dispersion intended to represent the income or wealth distribution of a nations residents, and is the most commonly used measure of inequality. It was developed by the Italian statistician and sociologist Corrado Gini, the Gini coefficient measures the inequality among values of a frequency distribution. A Gini coefficient of zero expresses perfect equality, where all values are the same, a Gini coefficient of 1 expresses maximal inequality among values. However, a greater than one may occur if some persons represent negative contribution to the total. For larger groups, values close to or above 1 are very unlikely in practice, the exception to this is in the redistribution of wealth resulting in a minimum income for all people. When the population is sorted, if their distribution were to approximate a well known function. The Gini coefficient was proposed by Gini as a measure of inequality of income or wealth, the global income Gini coefficient in 2005 has been estimated to be between 0.61 and 0.68 by various sources. There are some issues in interpreting a Gini coefficient, the same value may result from many different distribution curves. The demographic structure should be taken into account, Countries with an aging population, or with a baby boom, experience an increasing pre-tax Gini coefficient even if real income distribution for working adults remains constant. Scholars have devised over a dozen variants of the Gini coefficient, the line at 45 degrees thus represents perfect equality of incomes. The Gini coefficient can then be thought of as the ratio of the area lies between the line of equality and the Lorenz curve over the total area under the line of equality. It is also equal to 2A and to 1 - 2B due to the fact that A + B =0.5. If all people have non-negative income, the Gini coefficient can theoretically range from 0 to 1, in practice, both extreme values are not quite reached. If negative values are possible, then the Gini coefficient could theoretically be more than 1, normally the mean is assumed positive, which rules out a Gini coefficient less than zero. An alternative approach would be to consider the Gini coefficient as half of the mean absolute difference. The effects of income policy due to redistribution can be seen in the linear relationships. An informative simplified case just distinguishes two levels of income, low and high, if the high income group is u % of the population and earns a fraction f % of all income, then the Gini coefficient is f − u. An actual more graded distribution with these same values u and f will always have a higher Gini coefficient than f − u, the proverbial case where the richest 20% have 80% of all income would lead to an income Gini coefficient of at least 60%

20.
Diamond
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Diamond is a metastable allotrope of carbon, where the carbon atoms are arranged in a variation of the face-centered cubic crystal structure called a diamond lattice. Diamond is less stable than graphite, but the rate from diamond to graphite is negligible at standard conditions. Diamond is renowned as a material with superlative physical qualities, most of which originate from the covalent bonding between its atoms. In particular, diamond has the highest hardness and thermal conductivity of any bulk material and those properties determine the major industrial application of diamond in cutting and polishing tools and the scientific applications in diamond knives and diamond anvil cells. Because of its extremely rigid lattice, it can be contaminated by very few types of impurities, such as boron, small amounts of defects or impurities color diamond blue, yellow, brown, green, purple, pink, orange or red. Diamond also has relatively high optical dispersion, most natural diamonds are formed at high temperature and pressure at depths of 140 to 190 kilometers in the Earths mantle. Carbon-containing minerals provide the source, and the growth occurs over periods from 1 billion to 3.3 billion years. Diamonds are brought close to the Earths surface through deep volcanic eruptions by magma, Diamonds can also be produced synthetically in a HPHT method which approximately simulates the conditions in the Earths mantle. An alternative, and completely different growth technique is chemical vapor deposition, several non-diamond materials, which include cubic zirconia and silicon carbide and are often called diamond simulants, resemble diamond in appearance and many properties. Special gemological techniques have developed to distinguish natural diamonds, synthetic diamonds. The word is from the ancient Greek ἀδάμας – adámas unbreakable, the name diamond is derived from the ancient Greek αδάμας, proper, unalterable, unbreakable, untamed, from ἀ-, un- + δαμάω, I overpower, I tame. Diamonds have been known in India for at least 3,000 years, Diamonds have been treasured as gemstones since their use as religious icons in ancient India. Their usage in engraving tools also dates to early human history, later in 1797, the English chemist Smithson Tennant repeated and expanded that experiment. By demonstrating that burning diamond and graphite releases the same amount of gas, the most familiar uses of diamonds today are as gemstones used for adornment, a use which dates back into antiquity, and as industrial abrasives for cutting hard materials. The dispersion of light into spectral colors is the primary gemological characteristic of gem diamonds. In the 20th century, experts in gemology developed methods of grading diamonds, four characteristics, known informally as the four Cs, are now commonly used as the basic descriptors of diamonds, these are carat, cut, color, and clarity. A large, flawless diamond is known as a paragon and these conditions are met in two places on Earth, in the lithospheric mantle below relatively stable continental plates, and at the site of a meteorite strike. The conditions for diamond formation to happen in the mantle occur at considerable depth corresponding to the requirements of temperature and pressure

21.
Mining
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Mining is extraction of valuable minerals or other geological materials from the earth usually from an orebody, lode, vein, seam, reef or placer deposits. These deposits form a mineralized package that is of economic interest to the miner, ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. Mining is required to obtain any material that cannot be grown through agricultural processes, Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water. Mining of stones and metal has been a human activity since pre-historic times, Mining operations usually create a negative environmental impact, both during the mining activity and after the mine has closed. Hence, most of the nations have passed regulations to decrease the impact. Work safety has long been a concern as well, and modern practices have significantly improved safety in mines, levels of metals recycling are generally low. Unless future end-of-life recycling rates are stepped up, some rare metals may become unavailable for use in a variety of consumer products, due to the low recycling rates, some landfills now contain higher concentrations of metal than mines themselves. Since the beginning of civilization, people have used stone, ceramics and, later and these were used to make early tools and weapons, for example, high quality flint found in northern France, southern England and Poland was used to create flint tools. Flint mines have been found in areas where seams of the stone were followed underground by shafts. The mines at Grimes Graves and Krzemionki are especially famous, other hard rocks mined or collected for axes included the greenstone of the Langdale axe industry based in the English Lake District. The oldest-known mine on archaeological record is the Lion Cave in Swaziland, at this site Paleolithic humans mined hematite to make the red pigment ochre. Mines of an age in Hungary are believed to be sites where Neanderthals may have mined flint for weapons. Ancient Egyptians mined malachite at Maadi, at first, Egyptians used the bright green malachite stones for ornamentations and pottery. Later, between 2613 and 2494 BC, large building projects required expeditions abroad to the area of Wadi Maghareh in order to secure minerals and other resources not available in Egypt itself. Quarries for turquoise and copper were found at Wadi Hammamat, Tura, Aswan and various other Nubian sites on the Sinai Peninsula. Mining in Egypt occurred in the earliest dynasties, the gold mines of Nubia were among the largest and most extensive of any in Ancient Egypt. These mines are described by the Greek author Diodorus Siculus, who mentions fire-setting as one used to break down the hard rock holding the gold. One of the complexes is shown in one of the earliest known maps, the miners crushed the ore and ground it to a fine powder before washing the powder for the gold dust

22.
Manufacturing
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Manufacturing is the value added to production of merchandise for use or sale using labour and machines, tools, chemical and biological processing, or formulation. Manufacturing engineering or manufacturing process are the steps through which raw materials are transformed into a final product, the manufacturing process begins with the product design, and materials specification from which the product is made. These materials are modified through manufacturing processes to become the required part. Manufacturing takes turns under all types of economic systems, in a free market economy, manufacturing is usually directed toward the mass production of products for sale to consumers at a profit. In a collectivist economy, manufacturing is more directed by the state to supply a centrally planned economy. In mixed market economies, manufacturing occurs under some degree of government regulation, modern manufacturing includes all intermediate processes required the production and integration of a products components. Some industries, such as semiconductor and steel manufacturers use the term fabrication instead, the manufacturing sector is closely connected with engineering and industrial design. Examples of major manufacturers in North America include General Motors Corporation, General Electric, Procter & Gamble, General Dynamics, Boeing, Pfizer, examples in Europe include Volkswagen Group, Siemens, and Michelin. Examples in Asia include Sony, Huawei, Lenovo, Toyota, Samsung, in its earliest form, manufacturing was usually carried out by a single skilled artisan with assistants. In much of the world, the guild system protected the privileges. Before the Industrial Revolution, most manufacturing occurred in rural areas, entrepreneurs organized a number of manufacturing households into a single enterprise through the putting-out system. Toll manufacturing is an arrangement whereby a first firm with specialized equipment processes raw materials or semi-finished goods for a second firm, manufacturing provides important material support for national infrastructure and for national defense. On the other hand, most manufacturing may involve significant social and environmental costs, the clean-up costs of hazardous waste, for example, may outweigh the benefits of a product that creates it. Hazardous materials may expose workers to health risks and these costs are now well known and there is effort to address them by improving efficiency, reducing waste, using industrial symbiosis, and eliminating harmful chemicals. The negative costs of manufacturing can also be addressed legally, developed countries regulate manufacturing activity with labor laws and environmental laws. Across the globe, manufacturers can be subject to regulations and pollution taxes to offset the costs of manufacturing activities. Labor unions and craft guilds have played a role in the negotiation of worker rights. Environment laws and labor protections that are available in developed nations may not be available in the third world, tort law and product liability impose additional costs on manufacturing

23.
Cigarette
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A cigarette, or cigaret, is a small cylinder of finely cut tobacco leaves rolled in thin paper for smoking. Most modern manufactured cigarettes are filtered, and also include reconstituted tobacco, the term cigarette, as commonly used, refers to a tobacco cigarette, but can apply to similar devices other substances, such as cannabis. A cigarette is distinguished from a cigar by its size, use of processed leaf, and paper wrapping. Cigars are typically composed entirely of whole-leaf tobacco, rates of cigarette smoking vary widely throughout the world and have changed considerably since cigarettes were first widely used in the mid-19th century. While rates of smoking have over time leveled off or declined in the developed world, Cigarettes carry serious health risks, which are more prevalent than with other tobacco products. Nicotine, the psychoactive chemical in tobacco and therefore cigarettes, is very addictive. About half of cigarette smokers die of tobacco-related disease and lose on average 14 years of life, cigarette use by pregnant women has also been shown to cause birth defects, including low birth weight, fetal abnormalities, and premature birth. Second-hand smoke from cigarettes has been shown to be injurious to bystanders, Cigarettes produce an aerosol containing over 4,000 chemical compounds, including nicotine, carbon monoxide, acrolein, and other harmful substances. Over 50 of these are carcinogenic, the earliest forms of cigarettes were similar to their predecessor, the cigar. Cigarettes appear to have had antecedents in Mexico and Central America around the 9th century in the form of reeds, the Maya, and later the Aztecs, smoked tobacco and other psychoactive drugs in religious rituals and frequently depicted priests and deities smoking on pottery and temple engravings. The cigarette and the cigar were the most common methods of smoking in the Caribbean, Mexico, and Central and South America until recent times. The North American, Central American, and South American cigarette used various plant wrappers, when it was back to Spain, maize wrappers were introduced. The resulting product was called papelate and is documented in Goyas paintings La Cometa, La Merienda en el Manzanares, by 1830, the cigarette had crossed into France, where it received the name cigarette, and in 1845, the French state tobacco monopoly began manufacturing them. The first patented cigarette machine was by Juan Nepomuceno Adorno of Mexico in 1847 and this was helped by the development of tobaccos suitable for cigarette use, and by the development of the Egyptian cigarette export industry. Cigarettes may have initially used in a manner similar to pipes, cigars. As cigarette tobacco became milder and more acidic, inhaling may have perceived as more agreeable. However, Moltke noticed in the 1830s that Ottomans inhaled the Turkish tobacco, the widespread smoking of cigarettes in the Western world is largely a 20th-century phenomenon. At the start of the 20th century, the per capita consumption in the USA was 54 cigarettes

24.
Drink
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A drink or beverage is a liquid intended for human consumption. In addition to their function of satisfying thirst, drinks play important roles in human culture. Common types of drinks include plain water, milk, juices, coffee, tea, in addition, alcoholic drinks such as wine, beer, and liquor, which contain the drug ethanol, have been part of human culture and development for 8,000 years. Non-alcoholic drinks often signify drinks that would normally contain alcohol, such as beer, the category includes drinks that have undergone an alcohol removal process such as non-alcoholic beers and de-alcoholized wines. When the human body becomes dehydrated it experiences the sensation of thirst and this craving of fluids results in an instinctive need to drink. Thirst is regulated by the hypothalamus in response to changes in the bodys electrolyte levels. The complete elimination of drinks, i. e. water, Water and milk have been basic drinks throughout history. As water is essential for life, it has also been the carrier of many diseases, as mankind evolved, new techniques were discovered to create drinks from the plants that were native to their areas. The earliest archaeological evidence of wine production yet found has been at sites in Georgia, beer may have been known in Neolithic Europe as far back as 3000 BCE, and was mainly brewed on a domestic scale. The invention of beer has been argued to be responsible for humanitys ability to develop technology, tea likely originated in Yunnan, China during the Shang Dynasty as a medicinal drink. Drinking has been a part of socialising throughout the centuries. In Ancient Greece, a gathering for the purpose of drinking was known as a symposium. The purpose of these gatherings could be anything from serious discussions to direct indulgence, in Ancient Rome, a similar concept of a convivium took place regularly. Many early societies considered alcohol a gift from the gods, leading to the creation of such as Dionysus. Other religions forbid, discourage, or restrict the drinking of alcoholic drinks for various reasons, in some regions with a dominant religion the production, sale, and consumption of alcoholic drinks is forbidden to everybody, regardless of religion. Toasting is a method of honouring a person or wishing good will by taking a drink, another tradition is that of the loving cup, at weddings or other celebrations such as sports victories a group will share a drink in a large receptacle, shared by everyone until empty. In East Africa and Yemen, coffee was used in religious ceremonies. As these ceremonies conflicted with the beliefs of the Christian church, the drink was also banned in Ottoman Turkey during the 17th century for political reasons and was associated with rebellious political activities in Europe

25.
Textile
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A textile or cloth is a flexible material consisting of a network of natural or artificial fibres. Yarn is produced by spinning raw fibres of wool, flax, cotton, hemp, Textiles are formed by weaving, knitting, crocheting, knotting, or felting. The words fabric and cloth are used in textile assembly trades as synonyms for textile, however, there are subtle differences in these terms in specialized usage. Textile refers to any material made of interlacing fibres, a fabric is a material made through weaving, knitting, spreading, crocheting, or bonding that may be used in production of further goods. Cloth may be used synonymously with fabric but is often a piece of fabric used for a specific purpose. The word textile is from Latin, from the adjective textilis, meaning woven, from textus, the word cloth derives from the Old English clað, meaning a cloth, woven or felted material to wrap around one, from Proto-Germanic kalithaz. The discovery of dyed flax fibres in a cave in the Republic of Georgia dated to 34,000 BCE suggests textile-like materials were made even in prehistoric times. The production of textiles is a craft whose speed and scale of production has been altered almost beyond recognition by industrialization, however, for the main types of textiles, plain weave, twill, or satin weave, there is little difference between the ancient and modern methods. Textiles have an assortment of uses, the most common of which are for clothing and for such as bags. In the household they are used in carpeting, upholstered furnishings, window shades, towels, coverings for tables, beds, and other flat surfaces, in the workplace they are used in industrial and scientific processes such as filtering. Textiles are used in traditional crafts such as sewing, quilting. Textiles for industrial purposes, and chosen for other than their appearance, are commonly referred to as technical textiles. Technical textiles include textile structures for applications, medical textiles, geotextiles, agrotextiles. In all these applications stringent performance requirements must be met, woven of threads coated with zinc oxide nanowires, laboratory fabric has been shown capable of self-powering nanosystems using vibrations created by everyday actions like wind or body movements. Fashion designers commonly rely on textile designs to set their fashion collections apart from others, armani, the late Gianni Versace, and Emilio Pucci can be easily recognized by their signature print driven designs. Textiles can be made from many materials and these materials come from four main sources, animal, plant, mineral, and synthetic. In the past, all textiles were made from natural fibres, including plant, animal, in the 20th century, these were supplemented by artificial fibres made from petroleum. Textiles are made in various strengths and degrees of durability, from the finest gossamer to the sturdiest canvas, microfibre refers to fibres made of strands thinner than one denier

26.
Footwear
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Footwear refers to garments worn on the feet, which originally serves to purpose of protection against adversities of the environment, usually regarding ground textures and temperature. Footwear in the manner of shoes therefore primarily serves the purpose to ease the locomotion, secondly footwear can also be used for fashion and adornment as well as to indicate the status or rank of the person within a social structure. Socks and other hosiery are typically worn additionally between the feet and other footwear for further comfort and relief, cultures have different customs regarding footwear. These include not using any in some situations, usually bearing a symbolic meaning and this usually takes place in situations of captivity, such as imprisonment or slavery, where the groups are among other things distinctly divided by whether or whether not footwear is being worn. In these cases the use of footwear categorically indicates the exercise of power as against being devoid of footwear, Footwear is in use since earliest human history, archeological finds of complete shoes date back to the copper age. Some ancient civilizations, such as Egypt however saw no practical need for footwear due to convenient climatic and landscape situations and used primarily as ornaments. The Romans saw clothing and footwear as unmistakable signs of power and status in society, and most Romans wore footwear, while slaves and peasants remained barefoot. The Middle Ages saw the rise of high-heeled shoes, also associated with power, and the desire to look larger than life, officials like prosecutors, judges but also slave owners or passive bystanders were usually portrayed wearing shoes. In some cultures, people remove their shoes before entering a home, bare feet are also seen as a sign of humility and respect, and adherents of many religions worship or mourn while barefoot. Some religious communities explicitly require people to remove shoes before they enter holy buildings, in several cultures people remove their shoes as a sign of respect towards someone of higher standing. In a similar context deliberately forcing other people to go barefoot while being shod oneself has been used to clearly showcase, practitioners of the craft of shoemaking are called shoemakers, cobblers, or cordwainers. In the 15th century, chopines were created in Turkey, and were usually 7-8 inches high and these shoes became popular in Venice and throughout Europe, as a status symbol revealing wealth and social standing. During the 16th century, royalty such as Catherine de Medici, by 1580, men also wore them, and a person with authority or wealth might be described as, well-heeled. In modern society, high-heeled shoes are a part of fashion and are widespread in certain countries around the world. Modern footwear is made up of leather or plastic. In fact, leather was one of the materials used for the first versions of a shoe. The soles can be made of rubber or plastic, sometimes having a sheet of metal inside, roman sandals had sheets of metal on their soles so that it would not bend out of shape. More recently, footwear providers like Nike, have begun to source environmentally friendly materials, whereas in 2005, there were about 27,000 firms, in 2008 there were only 24,000

27.
Oil refinery
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Oil refineries are typically large, sprawling industrial complexes with extensive piping running throughout, carrying streams of fluids between large chemical processing units. In many ways, oil refineries use much of the technology of, the crude oil feedstock has typically been processed by an oil production plant. There is usually an oil depot at or near an oil refinery for the storage of incoming crude oil feedstock as well as bulk liquid products, an oil refinery is considered an essential part of the downstream side of the petroleum industry. The lighter elements, however, form explosive vapors in the tanks and are therefore hazardous. Petroleum fossil fuels are burned in internal combustion engines to power for ships, automobiles, aircraft engines, lawn mowers, dirt bikes. Different boiling points allow the hydrocarbons to be separated by distillation, Oil can be used in a variety of ways because it contains hydrocarbons of varying molecular masses, forms and lengths such as paraffins, aromatics, naphthenes, alkenes, dienes, and alkynes. Once separated and purified of any contaminants and impurities, the fuel or lubricant can be sold without further processing, smaller molecules such as isobutane and propylene or butylenes can be recombined to meet specific octane requirements by processes such as alkylation, or more commonly, dimerization. The octane grade of gasoline can also be improved by catalytic reforming, the final step in gasoline production is the blending of fuels with different octane ratings, vapor pressures, and other properties to meet product specifications. Another method for reprocessing and upgrading these intermediate products uses a process to separate usable oil from the waste asphaltene material. Oil refineries are large plants, processing about a hundred thousand to several hundred thousand barrels of crude oil a day. Because of the capacity, many of the units operate continuously, as opposed to processing in batches. The high capacity also makes process optimization and advanced process control very desirable, petroleum products are usually grouped into four categories, light distillates, middle distillates, heavy distillates and residuum. This classification is based on the way crude oil is distilled and separated into fractions as in the above drawing and these are not usually transported but instead are blended or processed further on-site. Chemical plants are often adjacent to oil refineries or a number of further chemical processes are integrated into it. For example, light hydrocarbons are steam-cracked in a plant. Using the Claus process, hydrogen sulfide is afterwards transformed to elementary sulfur to be sold to the chemical industry, the rather large heat energy freed by this process is directly used in the other parts of the refinery. Often an electrical plant is combined into the whole refinery process to take up the excess heat. Desalter unit washes out salt from the oil before it enters the atmospheric distillation unit

28.
Ship
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Historically, a ship was a sailing vessel with at least three square-rigged masts and a full bowsprit. Ships are generally distinguished from boats, based on size, shape, Ships have been important contributors to human migration and commerce. They have supported the spread of colonization and the trade, but have also served scientific, cultural. After the 16th century, new crops that had come from, Ship transport is responsible for the largest portion of world commerce. As of 2016, there were more than 49,000 merchant ships, of these 28% were oil tankers, 43% were bulk carriers, and 13% were container ships. Military forces operate vessels for naval warfare and to transport and support forces ashore, the top 50 navies had a median fleet of 88 surface vessels each, according to various sources. There is no definition of what distinguishes a ship from a boat. Ships can usually be distinguished from boats based on size and the ability to operate independently for extended periods. A legal definition of ship from Indian case law is a vessel that carries goods by sea, a common notion is that a ship can carry a boat, but not vice versa. American and British 19th Century maritime law distinguished vessels from other craft, ships and boats fall in one legal category, a number of large vessels are usually referred to as boats. Other types of vessel which are traditionally called boats are Great Lakes freighters, riverboats. Though large enough to carry their own boats and heavy cargoes, in most maritime traditions ships have individual names, and modern ships may belong to a ship class often named after its first ship. The first known vessels date back about 10,000 years ago, the first navigators began to use animal skins or woven fabrics as sails. Affixed to the top of a pole set upright in a boat and this allowed men to explore widely, allowing for the settlement of Oceania for example. By around 3000 BC, Ancient Egyptians knew how to assemble wooden planks into a hull and they used woven straps to lash the planks together, and reeds or grass stuffed between the planks helped to seal the seams. Sneferus ancient cedar wood ship Praise of the Two Lands is the first reference recorded to a ship being referred to by name, the ancient Egyptians were perfectly at ease building sailboats. A remarkable example of their skills was the Khufu ship. Aksum was known by the Greeks for having seaports for ships from Greece, a panel found at Mohenjodaro depicted a sailing craft

29.
Rutile
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Rutile is a mineral composed primarily of titanium dioxide, TiO2. Rutile is the most common form of TiO2. Three rarer polymorphs of TiO2 are known, Anatase, a metastable tetragonal mineral of pseudo-octahedral habit Brookite, an orthorhombic mineral TiO2, rutile has among the highest refractive indices at visible wavelengths of any known crystal, and also exhibits a particularly large birefringence and high dispersion. Owing to these properties, it is useful for the manufacture of optical elements, especially polarization optics, for longer visible. Natural rutile may contain up to 10% iron and significant amounts of niobium and tantalum, rutile derives its name from the Latin rutilus, red, in reference to the deep red color observed in some specimens when viewed by transmitted light. Rutile is an accessory mineral in high-temperature and high-pressure metamorphic rocks. Thermodynamically, rutile is the most stable polymorph of TiO2 at all temperatures, consequently, the transformation of the metastable TiO2 polymorphs to rutile is irreversible. As it has the lowest molecular volume of the three polymorphs, it is generally the primary titanium bearing phase in most high-pressure metamorphic rocks. The occurrence of large specimen crystals is most common in pegmatites, skarns, rutile is found as an accessory mineral in some altered igneous rocks, and in certain gneisses and schists. In groups of acicular crystals it is frequently seen penetrating quartz as in the fléches damour from Graubünden, in 2005 the Republic of Sierra Leone in West Africa had a production capacity of 23% of the worlds annual rutile supply, which rose to approximately 30% in 2008. The reserves, lasting for about 19 years, are estimated at 259,000,000 metric tons, rutile has a body-centred tetragonal unit cell, with unit cell parameters a=b=4.584 Å, and c=2.953 Å. The titanium cations have a number of 6 meaning they are surrounded by an octahedron of 6 oxygen atoms. The oxygen anions have a number of 3 resulting in a trigonal planar co-ordination. Rutile also shows a screw axis when its octahedra are viewed sequentially, rutile crystals are most commonly observed to exhibit a prsimatic or acicular growth habit with preferential orientation along their c-axis, the direction. This growth habit is favored as the facets of rutile exhibit the lowest surface free energy and are therefore thermodynamically most stable, the c-axis oriented growth of rutile appears clearly in nanorods, nanowires and Abnormal grain growth phenomena of this phase. In large enough quantities in beach sands, rutile forms an important constituent of heavy minerals, miners extract and separate the valuable minerals—e. g. The main uses for rutile are the manufacture of ceramic, as a pigment. Finely powdered rutile is a brilliant white pigment and is used in paints, plastics, paper, foods, titanium dioxide pigment is the single greatest use of titanium worldwide

30.
Cocoa bean
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The beans are the basis of chocolate, and of such Mesoamerican foods as mole and tejate. The word cocoa comes from the Spanish word cacao, which is derived from the Nahuatl word cacahuatl, the Nahuatl word, in turn, ultimately derives from the reconstructed Proto Mije-Sokean word *kakaw~*kakawa. It originated in Central America and parts of Mexico, more than 5,000 years ago, it was consumed by pre-Columbian cultures along the Yucatán, including the Mayans, and as far back as Olmeca civilization in spiritual ceremonies. It also grows in the foothills of the Andes in the Amazon and Orinoco basins of South America and its range may have been larger in the past, evidence of its wild range may be obscured by cultivation of the tree in these areas since long before the Spanish arrived. The cocoa bean was a currency throughout Mesoamerica before the Spanish conquest. Cacao trees grow in a geographical zone, of about 20° to the north and south of the Equator. Nearly 70% of the world today is grown in West Africa. The cacao plant was first given its name by Swedish natural scientist Carl Linnaeus in his original classification of the plant kingdom. Cocoa was an important commodity in pre-Columbian Mesoamerica, flavored with vanilla or other spices, his chocolate was whipped into a froth that dissolved in the mouth. No fewer than 60 portions each day reportedly may have been consumed by Moctezuma II, chocolate was introduced to Europe by the Spaniards, and became a popular beverage by the mid-17th century. They also introduced the tree into the West Indies and the Philippines. It was also introduced into the rest of Asia and into West Africa by Europeans, in the Gold Coast, modern Ghana, cacao was introduced by an African, Tetteh Quarshie. Due to heat buildup in the process, cacao beans lose most of the purplish hue and become mostly brown in color. This skin is released easily after roasting by winnowing, white seeds are found in some rare varieties, usually mixed with purples, and are considered of higher value. The three main varieties of plant are Forastero, Criollo, and Trinitario. The first is the most widely used, comprising 80-90% of the production of cocoa. Cocoa beans of the Criollo variety are rarer and considered a delicacy, Criollo plantations have lower yields than those of Forastero, and also tend to be less resistant to several diseases that attack the cocoa plant, hence very few countries still produce it. One of the largest producers of Criollo beans is Venezuela, Trinitario is a hybrid between Criollo and Forastero varieties

31.
Coffee
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Coffee is a brewed drink prepared from roasted coffee beans, which are the seeds of berries from the Coffea plant. The genus Coffea is native to tropical Africa, and Madagascar, the two most commonly grown are the highly regarded arabica, and the less sophisticated but stronger and more hardy robusta. Once ripe, coffee berries are picked, processed, and dried, dried coffee seeds are roasted to varying degrees, depending on the desired flavor. Roasted beans are ground and brewed with boiling water to produce coffee as a beverage. Coffee is slightly acidic and can have an effect on humans because of its caffeine content. Coffee is one of the most popular drinks in the world and it can be prepared and presented in a variety of ways. It is usually served hot, although iced coffee is also served, the earliest credible evidence of coffee-drinking appears in the middle of the 15th century in the Sufi shrines of Yemen. It was here in Arabia that coffee seeds were first roasted and brewed in a way to how it is now prepared. Coffee seeds were first exported from East Africa to Yemen, as the coffea arabica plant is thought to have been indigenous to the former, yemeni traders took coffee back to their homeland and began to cultivate the seed. By the 16th century, it had reached Persia, Turkey, from there, it spread to Europe and the rest of the world. Coffee is an export commodity, it is the top agricultural export for numerous countries and is among the worlds largest legal agricultural exports. It is one of the most valuable commodities exported by developing countries, green coffee is one of the most traded agricultural commodities in the world. Consequently, the markets for fair trade coffee and organic coffee are expanding. The first reference to coffee in the English language is in the form chaona, dated to 1598 and understood to be a misprint of chaoua, equivalent, in the orthography of the time, to chaova. This term and coffee both derive from the Ottoman Turkish kahve, by way of the Italian caffè and it has also been proposed that the source may be the Proto-Central Semitic root q-h-h meaning dark. Alternatively, the word Khat, a plant widely used as stimulant in Yemen and Ethiopia before being supplanted by coffee has been suggested as a possible origin, the expression coffee break was first attested in 1952. The term coffee pot dates from 1705, other accounts attribute the discovery of coffee to Sheikh Omar. According to the ancient chronicle, Omar, who was known for his ability to cure the sick through prayer, was exiled from Mocha in Yemen to a desert cave near Ousab

32.
Fish
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A fish is any member of a group of animals that consist of all gill-bearing aquatic craniate animals that lack limbs with digits. They form a group to the tunicates, together forming the olfactores. Included in this definition are the living hagfish, lampreys, and cartilaginous, tetrapods emerged within lobe-finned fishes, so cladistically they are fish as well. However, traditionally fish are rendered obsolete or paraphyletic by excluding the tetrapods, because in this manner the term fish is defined negatively as a paraphyletic group, it is not considered a formal taxonomic grouping in systematic biology. The traditional term pisces is considered a typological, but not a phylogenetic classification, the earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts, fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators, the first fish with jaws appeared in the Silurian period, after which many became formidable marine predators rather than just the prey of arthropods. Fish are abundant in most bodies of water and they can be found in nearly all aquatic environments, from high mountain streams to the abyssal and even hadal depths of the deepest oceans. With 33,100 described species, fish exhibit greater species diversity than any group of vertebrates. Fish are an important resource for humans worldwide, especially as food, commercial and subsistence fishers hunt fish in wild fisheries or farm them in ponds or in cages in the ocean. They are also caught by fishers, kept as pets, raised by fishkeepers. Fish have had a role in culture through the ages, serving as deities, religious symbols, fish do not represent a monophyletic group, and therefore the evolution of fish is not studied as a single event. Early fish from the record are represented by a group of small, jawless. Jawless fish lineages are mostly extinct, an extant clade, the lampreys may approximate ancient pre-jawed fish. The first jaws are found in Placodermi fossils, the diversity of jawed vertebrates may indicate the evolutionary advantage of a jawed mouth. It is unclear if the advantage of a hinged jaw is greater biting force, improved respiration, fish may have evolved from a creature similar to a coral-like sea squirt, whose larvae resemble primitive fish in important ways. The first ancestors of fish may have kept the form into adulthood. Fish are a group, that is, any clade containing all fish also contains the tetrapods

33.
China
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China, officially the Peoples Republic of China, is a unitary sovereign state in East Asia and the worlds most populous country, with a population of over 1.381 billion. The state is governed by the Communist Party of China and its capital is Beijing, the countrys major urban areas include Shanghai, Guangzhou, Beijing, Chongqing, Shenzhen, Tianjin and Hong Kong. China is a power and a major regional power within Asia. Chinas landscape is vast and diverse, ranging from forest steppes, the Himalaya, Karakoram, Pamir and Tian Shan mountain ranges separate China from much of South and Central Asia. The Yangtze and Yellow Rivers, the third and sixth longest in the world, respectively, Chinas coastline along the Pacific Ocean is 14,500 kilometers long and is bounded by the Bohai, Yellow, East China and South China seas. China emerged as one of the worlds earliest civilizations in the basin of the Yellow River in the North China Plain. For millennia, Chinas political system was based on hereditary monarchies known as dynasties, in 1912, the Republic of China replaced the last dynasty and ruled the Chinese mainland until 1949, when it was defeated by the communist Peoples Liberation Army in the Chinese Civil War. The Communist Party established the Peoples Republic of China in Beijing on 1 October 1949, both the ROC and PRC continue to claim to be the legitimate government of all China, though the latter has more recognition in the world and controls more territory. China had the largest economy in the world for much of the last two years, during which it has seen cycles of prosperity and decline. Since the introduction of reforms in 1978, China has become one of the worlds fastest-growing major economies. As of 2016, it is the worlds second-largest economy by nominal GDP, China is also the worlds largest exporter and second-largest importer of goods. China is a nuclear weapons state and has the worlds largest standing army. The PRC is a member of the United Nations, as it replaced the ROC as a permanent member of the U. N. Security Council in 1971. China is also a member of numerous formal and informal multilateral organizations, including the WTO, APEC, BRICS, the Shanghai Cooperation Organization, the BCIM, the English name China is first attested in Richard Edens 1555 translation of the 1516 journal of the Portuguese explorer Duarte Barbosa. The demonym, that is, the name for the people, Portuguese China is thought to derive from Persian Chīn, and perhaps ultimately from Sanskrit Cīna. Cīna was first used in early Hindu scripture, including the Mahābhārata, there are, however, other suggestions for the derivation of China. The official name of the state is the Peoples Republic of China. The shorter form is China Zhōngguó, from zhōng and guó and it was then applied to the area around Luoyi during the Eastern Zhou and then to Chinas Central Plain before being used as an occasional synonym for the state under the Qing

34.
Belgium
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Belgium, officially the Kingdom of Belgium, is a sovereign state in Western Europe bordered by France, the Netherlands, Germany, Luxembourg, and the North Sea. It is a small, densely populated country which covers an area of 30,528 square kilometres and has a population of about 11 million people. Additionally, there is a group of German-speakers who live in the East Cantons located around the High Fens area. Historically, Belgium, the Netherlands and Luxembourg were known as the Low Countries, the region was called Belgica in Latin, after the Roman province of Gallia Belgica. From the end of the Middle Ages until the 17th century, today, Belgium is a federal constitutional monarchy with a parliamentary system of governance. It is divided into three regions and three communities, that exist next to each other and its two largest regions are the Dutch-speaking region of Flanders in the north and the French-speaking southern region of Wallonia. The Brussels-Capital Region is a bilingual enclave within the Flemish Region. A German-speaking Community exists in eastern Wallonia, Belgiums linguistic diversity and related political conflicts are reflected in its political history and complex system of governance, made up of six different governments. Upon its independence, declared in 1830, Belgium participated in the Industrial Revolution and, during the course of the 20th century, possessed a number of colonies in Africa. This continuing antagonism has led to several far-reaching reforms, resulting in a transition from a unitary to a federal arrangement during the period from 1970 to 1993. Belgium is also a member of the Eurozone, NATO, OECD and WTO. Its capital, Brussels, hosts several of the EUs official seats as well as the headquarters of major international organizations such as NATO. Belgium is also a part of the Schengen Area, Belgium is a developed country, with an advanced high-income economy and is categorized as very high in the Human Development Index. A gradual immigration by Germanic Frankish tribes during the 5th century brought the area under the rule of the Merovingian kings, a gradual shift of power during the 8th century led the kingdom of the Franks to evolve into the Carolingian Empire. Many of these fiefdoms were united in the Burgundian Netherlands of the 14th and 15th centuries, the Eighty Years War divided the Low Countries into the northern United Provinces and the Southern Netherlands. The latter were ruled successively by the Spanish and the Austrian Habsburgs and this was the theatre of most Franco-Spanish and Franco-Austrian wars during the 17th and 18th centuries. The reunification of the Low Countries as the United Kingdom of the Netherlands occurred at the dissolution of the First French Empire in 1815, although the franchise was initially restricted, universal suffrage for men was introduced after the general strike of 1893 and for women in 1949. The main political parties of the 19th century were the Catholic Party, French was originally the single official language adopted by the nobility and the bourgeoisie

35.
Japan
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Japan is a sovereign island nation in Eastern Asia. Located in the Pacific Ocean, it lies off the eastern coast of the Asia Mainland and stretches from the Sea of Okhotsk in the north to the East China Sea, the kanji that make up Japans name mean sun origin. 日 can be read as ni and means sun while 本 can be read as hon, or pon, Japan is often referred to by the famous epithet Land of the Rising Sun in reference to its Japanese name. Japan is an archipelago consisting of about 6,852 islands. The four largest are Honshu, Hokkaido, Kyushu and Shikoku, the country is divided into 47 prefectures in eight regions. Hokkaido being the northernmost prefecture and Okinawa being the southernmost one, the population of 127 million is the worlds tenth largest. Japanese people make up 98. 5% of Japans total population, approximately 9.1 million people live in the city of Tokyo, the capital of Japan. Archaeological research indicates that Japan was inhabited as early as the Upper Paleolithic period, the first written mention of Japan is in Chinese history texts from the 1st century AD. Influence from other regions, mainly China, followed by periods of isolation, from the 12th century until 1868, Japan was ruled by successive feudal military shoguns who ruled in the name of the Emperor. Japan entered into a period of isolation in the early 17th century. The Second Sino-Japanese War of 1937 expanded into part of World War II in 1941, which came to an end in 1945 following the bombings of Hiroshima and Nagasaki. Japan is a member of the UN, the OECD, the G7, the G8, the country has the worlds third-largest economy by nominal GDP and the worlds fourth-largest economy by purchasing power parity. It is also the worlds fourth-largest exporter and fourth-largest importer, although Japan has officially renounced its right to declare war, it maintains a modern military with the worlds eighth-largest military budget, used for self-defense and peacekeeping roles. Japan is a country with a very high standard of living. Its population enjoys the highest life expectancy and the third lowest infant mortality rate in the world, in ancient China, Japan was called Wo 倭. It was mentioned in the third century Chinese historical text Records of the Three Kingdoms in the section for the Wei kingdom, Wa became disliked because it has the connotation of the character 矮, meaning dwarf. The 倭 kanji has been replaced with the homophone Wa, meaning harmony, the Japanese word for Japan is 日本, which is pronounced Nippon or Nihon and literally means the origin of the sun. The earliest record of the name Nihon appears in the Chinese historical records of the Tang dynasty, at the start of the seventh century, a delegation from Japan introduced their country as Nihon

36.
Turkey
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Turkey, officially the Republic of Turkey, is a transcontinental country in Eurasia, mainly in Anatolia in Western Asia, with a smaller portion on the Balkan peninsula in Southeast Europe. Turkey is a democratic, secular, unitary, parliamentary republic with a cultural heritage. The country is encircled by seas on three sides, the Aegean Sea is to the west, the Black Sea to the north, and the Mediterranean Sea to the south. The Bosphorus, the Sea of Marmara, and the Dardanelles, Ankara is the capital while Istanbul is the countrys largest city and main cultural and commercial centre. Approximately 70-80% of the countrys citizens identify themselves as ethnic Turks, other ethnic groups include legally recognised and unrecognised minorities. Kurds are the largest ethnic minority group, making up approximately 20% of the population, the area of Turkey has been inhabited since the Paleolithic by various ancient Anatolian civilisations, as well as Assyrians, Greeks, Thracians, Phrygians, Urartians and Armenians. After Alexander the Greats conquest, the area was Hellenized, a process continued under the Roman Empire. The Seljuk Sultanate of Rûm ruled Anatolia until the Mongol invasion in 1243, the empire reached the peak of its power in the 16th century, especially during the reign of Suleiman the Magnificent. During the war, the Ottoman government committed genocides against its Armenian, Assyrian, following the war, the conglomeration of territories and peoples that formerly comprised the Ottoman Empire was partitioned into several new states. Turkey is a member of the UN, an early member of NATO. Turkeys growing economy and diplomatic initiatives have led to its recognition as a regional power while her location has given it geopolitical, the name of Turkey is based on the ethnonym Türk. The first recorded use of the term Türk or Türük as an autonym is contained in the Old Turkic inscriptions of the Göktürks of Central Asia, the English name Turkey first appeared in the late 14th century and is derived from Medieval Latin Turchia. Similarly, the medieval Khazar Empire, a Turkic state on the shores of the Black. The medieval Arabs referred to the Mamluk Sultanate as al-Dawla al-Turkiyya, the Ottoman Empire was sometimes referred to as Turkey or the Turkish Empire among its European contemporaries. The Anatolian peninsula, comprising most of modern Turkey, is one of the oldest permanently settled regions in the world, various ancient Anatolian populations have lived in Anatolia, from at least the Neolithic period until the Hellenistic period. Many of these peoples spoke the Anatolian languages, a branch of the larger Indo-European language family, in fact, given the antiquity of the Indo-European Hittite and Luwian languages, some scholars have proposed Anatolia as the hypothetical centre from which the Indo-European languages radiated. The European part of Turkey, called Eastern Thrace, has also been inhabited since at least forty years ago. It is the largest and best-preserved Neolithic site found to date, the settlement of Troy started in the Neolithic Age and continued into the Iron Age

37.
Netherlands
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The Netherlands, also informally known as Holland is the main constituent country of the Kingdom of the Netherlands. It is a densely populated country located in Western Europe with three territories in the Caribbean. The European part of the Netherlands borders Germany to the east, Belgium to the south, and the North Sea to the northwest, sharing borders with Belgium, the United Kingdom. The three largest cities in the Netherlands are Amsterdam, Rotterdam and The Hague, Amsterdam is the countrys capital, while The Hague holds the Dutch seat of parliament and government. The port of Rotterdam is the worlds largest port outside East-Asia, the name Holland is used informally to refer to the whole of the country of the Netherlands. Netherlands literally means lower countries, influenced by its low land and flat geography, most of the areas below sea level are artificial. Since the late 16th century, large areas have been reclaimed from the sea and lakes, with a population density of 412 people per km2 –507 if water is excluded – the Netherlands is classified as a very densely populated country. Only Bangladesh, South Korea, and Taiwan have both a population and higher population density. Nevertheless, the Netherlands is the worlds second-largest exporter of food and agricultural products and this is partly due to the fertility of the soil and the mild climate. In 2001, it became the worlds first country to legalise same-sex marriage, the Netherlands is a founding member of the EU, Eurozone, G-10, NATO, OECD and WTO, as well as being a part of the Schengen Area and the trilateral Benelux Union. The first four are situated in The Hague, as is the EUs criminal intelligence agency Europol and this has led to the city being dubbed the worlds legal capital. The country also ranks second highest in the worlds 2016 Press Freedom Index, the Netherlands has a market-based mixed economy, ranking 17th of 177 countries according to the Index of Economic Freedom. It had the thirteenth-highest per capita income in the world in 2013 according to the International Monetary Fund, in 2013, the United Nations World Happiness Report ranked the Netherlands as the seventh-happiest country in the world, reflecting its high quality of life. The Netherlands also ranks joint second highest in the Inequality-adjusted Human Development Index, the region called Low Countries and the country of the Netherlands have the same toponymy. Place names with Neder, Nieder, Nether and Nedre and Bas or Inferior are in use in all over Europe. They are sometimes used in a relation to a higher ground that consecutively is indicated as Upper, Boven, Oben. In the case of the Low Countries / the Netherlands the geographical location of the region has been more or less downstream. The geographical location of the region, however, changed over time tremendously

38.
Indonesia
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Indonesia, officially the Republic of Indonesia, is a unitary sovereign state and transcontinental country located mainly in Southeast Asia with some territories in Oceania. Situated between the Indian and Pacific oceans, it is the worlds largest island country, with more than seventeen thousand islands. At 1,904,569 square kilometres, Indonesia is the worlds 14th-largest country in terms of area and worlds 7th-largest country in terms of combined sea. It has an population of over 260 million people and is the worlds fourth most populous country. The worlds most populous island, Java, contains more than half of the countrys population, Indonesias republican form of government includes an elected legislature and president. Indonesia has 34 provinces, of which five have Special Administrative status and its capital and countrys most populous city is Jakarta, which is also the most populous city in Southeast Asia and the second in Asia. The country shares land borders with Papua New Guinea, East Timor, other neighbouring countries include Singapore, Vietnam, the Philippines, Australia, Palau, and the Indian territory of the Andaman and Nicobar Islands. Despite its large population and densely populated regions, Indonesia has vast areas of wilderness that support the second highest level of biodiversity. The country has abundant natural resources like oil and natural gas, tin, copper, agriculture mainly produces rice, palm oil, tea, coffee, cacao, medicinal plants, spices and rubber. Indonesias major trading partners are Japan, United States, China, the Indonesian archipelago has been an important region for trade since at least the 7th century, when Srivijaya and then later Majapahit traded with China and India. Local rulers gradually absorbed foreign cultural, religious and political models from the early centuries CE, Indonesian history has been influenced by foreign powers drawn to its natural resources. Indonesia consists of hundreds of native ethnic and linguistic groups. The largest – and politically dominant – ethnic group are the Javanese, a shared identity has developed, defined by a national language, ethnic diversity, religious pluralism within a Muslim-majority population, and a history of colonialism and rebellion against it. Indonesias national motto, Bhinneka Tunggal Ika, articulates the diversity that shapes the country, Indonesias economy is the worlds 16th largest by nominal GDP and the 8th largest by GDP at PPP, the largest in Southeast Asia, and is considered an emerging market and newly industrialised country. Indonesia has been a member of the United Nations since 1950, Indonesia is a member of the G20 major economies and World Trade Organization. The name Indonesia derives from the Greek name of the Indós, the name dates to the 18th century, far predating the formation of independent Indonesia. In 1850, George Windsor Earl, an English ethnologist, proposed the terms Indunesians—and, his preference, in the same publication, one of his students, James Richardson Logan, used Indonesia as a synonym for Indian Archipelago. However, Dutch academics writing in East Indies publications were reluctant to use Indonesia, they preferred Malay Archipelago, the Netherlands East Indies, popularly Indië, the East, and Insulinde

39.
Machine (mechanical)
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Machines employ power to achieve desired forces and movement. A machine has a source and actuators that generate forces and movement. Modern machines often include computers and sensors that monitor performance and plan movement, the meaning of the word machine is traced by the Oxford English Dictionary to an independently functioning structure and by Merriam-Webster Dictionary to something that has been constructed. This includes human design into the meaning of machine, similarly Merriam-Webster Dictionary defines mechanical as relating to machinery or tools. Power flow through a machine provides a way to understand the performance of devices ranging from levers and gear trains to automobiles, notice that forces and motion combine to define power. More recently, Uicker et al. stated that a machine is a device for applying power or changing its direction, and McCarthy and Soh describe a machine as a system that generally consists of a power source and a mechanism for the controlled use of this power. The idea that a machine can be decomposed into simple movable elements led Archimedes to define the lever, pulley, by the time of the Renaissance this list increased to include the wheel and axle, wedge and inclined plane. The modern approach to characterizing machines focusses on the components that allow movement, wedge, Perhaps the first example of a device designed to manage power is the hand axe, also see biface and Olorgesailie. A hand axe is made by chipping stone, generally flint, to form a bifacial edge, a wedge is a simple machine that transforms lateral force and movement of the tool into a transverse splitting force and movement of the workpiece. The available power is limited by the effort of the using the tool, but because power is the product of force and movement. This amplification, or mechanical advantage is the ratio of the speed to output speed. For a wedge this is given by 1/tanα, where α is the tip angle, the faces of a wedge are modeled as straight lines to form a sliding or prismatic joint. Lever, The lever is another important and simple device for managing power and this is a body that pivots on a fulcrum. The fulcrum of a lever is modeled as a hinged or revolute joint, wheel, The wheel is clearly an important early machine, such as the chariot. A wheel uses the law of the lever to reduce the force needed to overcome friction when pulling a load. To see this notice that the associated with pulling a load on the ground is approximately the same as the friction in a simple bearing that supports the load on the axle of a wheel. However, the forms a lever that magnifies the pulling force so that it overcomes the frictional resistance in the bearing. Natural forces such as wind and water powered larger mechanical systems, waterwheels appeared around the world around 300 BC to use flowing water to generate rotary motion, which was applied to milling grain, and powering lumber, machining and textile operations

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Fuel
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A fuel is any material that can be made to react with other substances so that it releases chemical or nuclear energy as heat or to be used for work. The concept was applied solely to those materials capable of releasing chemical energy but has since also been applied to other sources of heat energy such as nuclear energy. The heat energy released by reactions of fuels is converted into mechanical energy via a heat engine, other times the heat itself is valued for warmth, cooking, or industrial processes, as well as the illumination that comes with combustion. Fuels are also used in the cells of organisms in a known as cellular respiration. Hydrocarbons and related oxygen-containing molecules are by far the most common source of fuel used by humans, fuels are contrasted with other substances or devices storing potential energy, such as those that directly release electrical energy or mechanical energy. The first known use of fuel was the combustion of wood or sticks by Homo erectus near 2,000,000 years ago, throughout most of human history fuels derived from plants or animal fat were only used by humans. Charcoal, a derivative, has been used since at least 6,000 BCE for melting metals. It was only supplanted by coke, derived from coal, as European forests started to become depleted around the 18th century, charcoal briquettes are now commonly used as a fuel for barbecue cooking. Coal was first used as a fuel around 1000 BCE in China, coal was later used to drive ships and locomotives. By the 19th century, gas extracted from coal was being used for lighting in London. In the 20th and 21st centuries, the use of coal is to generate electricity. Fossil fuels were rapidly adopted during the revolution, because they were more concentrated and flexible than traditional energy sources. They have become a part of our contemporary society, with most countries in the world burning fossil fuels in order to produce power. Currently the trend has been towards renewable fuels, such as biofuels like alcohols, chemical fuels are substances that release energy by reacting with substances around them, most notably by the process of combustion. Most of the energy released in combustion was not stored in the chemical bonds of the fuel. Chemical fuels are divided in two ways, first, by their physical properties, as a solid, liquid or gas. Secondly, on the basis of their occurrence, primary and secondary, solid fuels include wood, charcoal, peat, coal, Hexamine fuel tablets, and pellets made from wood, corn, wheat, rye and other grains. Solid-fuel rocket technology also uses solid fuel, solid fuels have been used by humanity for many years to create fire

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Chemical substance
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A chemical substance is a form of matter that has constant chemical composition and characteristic properties. It cannot be separated into components by physical methods, i. e. without breaking chemical bonds. Chemical substances can be chemical elements, chemical compounds, ions or alloys, Chemical substances are often called pure to set them apart from mixtures. A common example of a substance is pure water, it has the same properties. Other chemical substances commonly encountered in pure form are diamond, gold, table salt, however, in practice, no substance is entirely pure, and chemical purity is specified according to the intended use of the chemical. Chemical substances exist as solids, liquids, gases, or plasma, Chemical substances may be combined or converted to others by means of chemical reactions. Forms of energy, such as light and heat, are not matter, a chemical substance may well be defined as any material with a definite chemical composition in an introductory general chemistry textbook. According to this definition a chemical substance can either be a chemical element or a pure chemical compound. But, there are exceptions to this definition, a substance can also be defined as a form of matter that has both definite composition and distinct properties. The chemical substance index published by CAS also includes several alloys of uncertain composition, in geology, substances of uniform composition are called minerals, while physical mixtures of several minerals are defined as rocks. Many minerals, however, mutually dissolve into solid solutions, such that a rock is a uniform substance despite being a mixture in stoichiometric terms. Feldspars are an example, anorthoclase is an alkali aluminium silicate. In law, chemical substances may include both pure substances and mixtures with a composition or manufacturing process. For example, the EU regulation REACH defines monoconstituent substances, multiconstituent substances and substances of unknown or variable composition, the latter two consist of multiple chemical substances, however, their identity can be established either by direct chemical analysis or reference to a single manufacturing process. For example, charcoal is a complex, partially polymeric mixture that can be defined by its manufacturing process. Therefore, although the chemical identity is unknown, identification can be made to a sufficient accuracy. The CAS index also includes mixtures, polymers almost always appear as mixtures of molecules of multiple molar masses, each of which could be considered a separate chemical substance. However, the polymer may be defined by a precursor or reaction

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Food
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Food is any substance consumed to provide nutritional support for an organism. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, the substance is ingested by an organism and assimilated by the organisms cells to provide energy, maintain life, or stimulate growth. Historically, humans secured food through two methods, hunting and gathering and agriculture, today, the majority of the food energy required by the ever increasing population of the world is supplied by the food industry. They address issues such as sustainability, biological diversity, climate change, nutritional economics, population growth, water supply, most food has its origin in plants. Some food is obtained directly from plants, but even animals that are used as sources are raised by feeding them food derived from plants. Cereal grain is a food that provides more food energy worldwide than any other type of crop. Corn, wheat, and rice – in all of their varieties – account for 87% of all grain production worldwide, most of the grain that is produced worldwide is fed to livestock. Some foods not from animal or plant sources include various edible fungi, fungi and ambient bacteria are used in the preparation of fermented and pickled foods like leavened bread, alcoholic drinks, cheese, pickles, kombucha, and yogurt. Another example is blue-green algae such as Spirulina, inorganic substances such as salt, baking soda and cream of tartar are used to preserve or chemically alter an ingredient. Many plants and plant parts are eaten as food and around 2,000 plant species are cultivated for food, many of these plant species have several distinct cultivars. Seeds of plants are a source of food for animals, including humans, because they contain the nutrients necessary for the plants initial growth, including many healthful fats. In fact, the majority of food consumed by human beings are seed-based foods, edible seeds include cereals, legumes, and nuts. Oilseeds are often pressed to produce rich oils - sunflower, flaxseed, rapeseed, sesame, seeds are typically high in unsaturated fats and, in moderation, are considered a health food, although not all seeds are edible. Large seeds, such as those from a lemon, pose a choking hazard, fruits are the ripened ovaries of plants, including the seeds within. Many plants and animals have coevolved such that the fruits of the former are a food source to the latter. Fruits, therefore, make up a significant part of the diets of most cultures, some botanical fruits, such as tomatoes, pumpkins, and eggplants, are eaten as vegetables. Vegetables are a type of plant matter that is commonly eaten as food. These include root vegetables, bulbs, leaf vegetables, stem vegetables, animals are used as food either directly or indirectly by the products they produce

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India
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India, officially the Republic of India, is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and it is bounded by the Indian Ocean on the south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast. It shares land borders with Pakistan to the west, China, Nepal, and Bhutan to the northeast, in the Indian Ocean, India is in the vicinity of Sri Lanka and the Maldives. Indias Andaman and Nicobar Islands share a border with Thailand. The Indian subcontinent was home to the urban Indus Valley Civilisation of the 3rd millennium BCE, in the following millennium, the oldest scriptures associated with Hinduism began to be composed. Social stratification, based on caste, emerged in the first millennium BCE, early political consolidations took place under the Maurya and Gupta empires, the later peninsular Middle Kingdoms influenced cultures as far as southeast Asia. In the medieval era, Judaism, Zoroastrianism, Christianity, and Islam arrived, much of the north fell to the Delhi sultanate, the south was united under the Vijayanagara Empire. The economy expanded in the 17th century in the Mughal empire, in the mid-18th century, the subcontinent came under British East India Company rule, and in the mid-19th under British crown rule. A nationalist movement emerged in the late 19th century, which later, under Mahatma Gandhi, was noted for nonviolent resistance, in 2015, the Indian economy was the worlds seventh largest by nominal GDP and third largest by purchasing power parity. Following market-based economic reforms in 1991, India became one of the major economies and is considered a newly industrialised country. However, it continues to face the challenges of poverty, corruption, malnutrition, a nuclear weapons state and regional power, it has the third largest standing army in the world and ranks sixth in military expenditure among nations. India is a constitutional republic governed under a parliamentary system. It is a pluralistic, multilingual and multi-ethnic society and is home to a diversity of wildlife in a variety of protected habitats. The name India is derived from Indus, which originates from the Old Persian word Hindu, the latter term stems from the Sanskrit word Sindhu, which was the historical local appellation for the Indus River. The ancient Greeks referred to the Indians as Indoi, which translates as The people of the Indus, the geographical term Bharat, which is recognised by the Constitution of India as an official name for the country, is used by many Indian languages in its variations. Scholars believe it to be named after the Vedic tribe of Bharatas in the second millennium B. C. E and it is also traditionally associated with the rule of the legendary emperor Bharata. Gaṇarājya is the Sanskrit/Hindi term for republic dating back to the ancient times, hindustan is a Persian name for India dating back to the 3rd century B. C. E. It was introduced into India by the Mughals and widely used since then and its meaning varied, referring to a region that encompassed northern India and Pakistan or India in its entirety

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South Africa
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South Africa, officially the Republic of South Africa, is the southernmost country in Africa. South Africa is the 25th-largest country in the world by land area and it is the southernmost country on the mainland of the Old World or the Eastern Hemisphere. About 80 percent of South Africans are of Sub-Saharan African ancestry, divided among a variety of ethnic groups speaking different Bantu languages, the remaining population consists of Africas largest communities of European, Asian, and multiracial ancestry. South Africa is a multiethnic society encompassing a variety of cultures, languages. Its pluralistic makeup is reflected in the recognition of 11 official languages. The country is one of the few in Africa never to have had a coup détat, however, the vast majority of black South Africans were not enfranchised until 1994. During the 20th century, the black majority sought to recover its rights from the dominant white minority, with this struggle playing a role in the countrys recent history. The National Party imposed apartheid in 1948, institutionalising previous racial segregation, since 1994, all ethnic and linguistic groups have held political representation in the countrys democracy, which comprises a parliamentary republic and nine provinces. South Africa is often referred to as the Rainbow Nation to describe the multicultural diversity. The World Bank classifies South Africa as an economy. Its economy is the second-largest in Africa, and the 34th-largest in the world, in terms of purchasing power parity, South Africa has the seventh-highest per capita income in Africa. However, poverty and inequality remain widespread, with about a quarter of the population unemployed, nevertheless, South Africa has been identified as a middle power in international affairs, and maintains significant regional influence. The name South Africa is derived from the geographic location at the southern tip of Africa. Upon formation the country was named the Union of South Africa in English, since 1961 the long form name in English has been the Republic of South Africa. In Dutch the country was named Republiek van Zuid-Afrika, replaced in 1983 by the Afrikaans Republiek van Suid-Afrika, since 1994 the Republic has had an official name in each of its 11 official languages. Mzansi, derived from the Xhosa noun umzantsi meaning south, is a name for South Africa. South Africa contains some of the oldest archaeological and human fossil sites in the world, extensive fossil remains have been recovered from a series of caves in Gauteng Province. The area is a UNESCO World Heritage site and has termed the Cradle of Humankind

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United States
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Forty-eight of the fifty states and the federal district are contiguous and located in North America between Canada and Mexico. The state of Alaska is in the northwest corner of North America, bordered by Canada to the east, the state of Hawaii is an archipelago in the mid-Pacific Ocean. The U. S. territories are scattered about the Pacific Ocean, the geography, climate and wildlife of the country are extremely diverse. At 3.8 million square miles and with over 324 million people, the United States is the worlds third- or fourth-largest country by area, third-largest by land area. It is one of the worlds most ethnically diverse and multicultural nations, paleo-Indians migrated from Asia to the North American mainland at least 15,000 years ago. European colonization began in the 16th century, the United States emerged from 13 British colonies along the East Coast. Numerous disputes between Great Britain and the following the Seven Years War led to the American Revolution. On July 4,1776, during the course of the American Revolutionary War, the war ended in 1783 with recognition of the independence of the United States by Great Britain, representing the first successful war of independence against a European power. The current constitution was adopted in 1788, after the Articles of Confederation, the first ten amendments, collectively named the Bill of Rights, were ratified in 1791 and designed to guarantee many fundamental civil liberties. During the second half of the 19th century, the American Civil War led to the end of slavery in the country. By the end of century, the United States extended into the Pacific Ocean. The Spanish–American War and World War I confirmed the status as a global military power. The end of the Cold War and the dissolution of the Soviet Union in 1991 left the United States as the sole superpower. The U. S. is a member of the United Nations, World Bank, International Monetary Fund, Organization of American States. The United States is a developed country, with the worlds largest economy by nominal GDP. It ranks highly in several measures of performance, including average wage, human development, per capita GDP. While the U. S. economy is considered post-industrial, characterized by the dominance of services and knowledge economy, the United States is a prominent political and cultural force internationally, and a leader in scientific research and technological innovations. In 1507, the German cartographer Martin Waldseemüller produced a map on which he named the lands of the Western Hemisphere America after the Italian explorer and cartographer Amerigo Vespucci

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United Kingdom
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The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom or Britain, is a sovereign country in western Europe. Lying off the north-western coast of the European mainland, the United Kingdom includes the island of Great Britain, Northern Ireland is the only part of the United Kingdom that shares a land border with another sovereign state‍—‌the Republic of Ireland. The Irish Sea lies between Great Britain and Ireland, with an area of 242,500 square kilometres, the United Kingdom is the 78th-largest sovereign state in the world and the 11th-largest in Europe. It is also the 21st-most populous country, with an estimated 65.1 million inhabitants, together, this makes it the fourth-most densely populated country in the European Union. The United Kingdom is a monarchy with a parliamentary system of governance. The monarch is Queen Elizabeth II, who has reigned since 6 February 1952, other major urban areas in the United Kingdom include the regions of Birmingham, Leeds, Glasgow, Liverpool and Manchester. The United Kingdom consists of four countries—England, Scotland, Wales, the last three have devolved administrations, each with varying powers, based in their capitals, Edinburgh, Cardiff and Belfast, respectively. The relationships among the countries of the UK have changed over time, Wales was annexed by the Kingdom of England under the Laws in Wales Acts 1535 and 1542. A treaty between England and Scotland resulted in 1707 in a unified Kingdom of Great Britain, which merged in 1801 with the Kingdom of Ireland to form the United Kingdom of Great Britain and Ireland. Five-sixths of Ireland seceded from the UK in 1922, leaving the present formulation of the United Kingdom of Great Britain, there are fourteen British Overseas Territories. These are the remnants of the British Empire which, at its height in the 1920s, British influence can be observed in the language, culture and legal systems of many of its former colonies. The United Kingdom is a country and has the worlds fifth-largest economy by nominal GDP. The UK is considered to have an economy and is categorised as very high in the Human Development Index. It was the worlds first industrialised country and the worlds foremost power during the 19th, the UK remains a great power with considerable economic, cultural, military, scientific and political influence internationally. It is a nuclear weapons state and its military expenditure ranks fourth or fifth in the world. The UK has been a permanent member of the United Nations Security Council since its first session in 1946 and it has been a leading member state of the EU and its predecessor, the European Economic Community, since 1973. However, on 23 June 2016, a referendum on the UKs membership of the EU resulted in a decision to leave. The Acts of Union 1800 united the Kingdom of Great Britain, Scotland, Wales and Northern Ireland have devolved self-government

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Ivory Coast
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Ivory Coast or Côte dIvoire, officially the Republic of Côte dIvoire, is a country located in West Africa. Ivory Coasts political capital is Yamoussoukro, and its economic capital and its bordering countries are Guinea and Liberia in the west, Burkina Faso and Mali in the north, and Ghana in the east. The Gulf of Guinea is located south of Ivory Coast, prior to its colonization by Europeans, Ivory Coast was home to several states, including Gyaaman, the Kong Empire, and Baoulé. Two Anyi kingdoms, Indénié and Sanwi, attempted to retain their identity through the French colonial period. Ivory Coast became a protectorate of France in 1843–1844 and was formed into a French colony in 1893 amid the European scramble for Africa. Ivory Coast achieved independence in 1960, led by Félix Houphouët-Boigny, the country maintained close political and economic association with its West African neighbors while at the same time maintaining close ties to the West, especially France. Since the end of Houphouët-Boignys rule in 1993, Ivory Coast has experienced one coup détat, in 1999, the first took place between 2002 and 2007 and the second during 2010-2011. As a result, in 2000, the adopted a new Constitution. Ivory Coast is a republic with an executive power invested in its President. Through the production of coffee and cocoa, the country was a powerhouse in West Africa during the 1960s and 1970s. Ivory Coast went through a crisis in the 1980s, contributing to a period of political and social turmoil. Changing into the 21st-century Ivorian economy is largely market-based and still heavily on agriculture. The official language is French, with indigenous languages also widely used, including Baoulé, Dioula, Dan, Anyin. In total there are around 78 languages spoken in Ivory Coast, popular religions include Islam, Christianity, and various indigenous religions. Originally, Portuguese and French merchant-explorers in the 15th and 16th centuries divided the west coast of Africa, very roughly, there was also a Pepper Coast also known as the Grain Coast, a Gold Coast, and a Slave Coast. Like those, the name Ivory Coast reflected the major trade occurred on that particular stretch of the coast. One can find the name Cote de Dents regularly used in older works and it was used in Ducketts Dictionnaire and by Nicolas Villault de Bellefond, for examples, although Antoine François Prévost used Côte dIvoire. In the 19th century, usage switched to Côte dIvoire and it retained the name through French rule and independence in 1960